Updated Catalog Research Articles

An updated catalogue of nomenclatural types housed in the herbarium IEB of the Instituto de Ecología, A.C., Michoacán, Mexico

An updated catalogue of the collection of primary nomenclatural types preserved in the herbarium IEB is presented. Information is provided regarding the nomenclature of 600 taxa of vascular plants (566 species, 13 subspecies, 20 varieties and 1 form) supported by 730 specimens (219 holotypes, 500 isotypes, 3 neotypes and 8 isoneotypes). Nearly 27% of the types and 33% of the taxa correspond to the Flora del Bajío y de Regiones Adyacentes.

An updated catalogue of true flies (Insecta: Diptera) from northern Pakistan

We present the first comprehensive catalogue of true flies from the northernmost territories of Pakistan, including Azad Jammu & Kashmir and Gilgit-Baltistan. In the current inventory, 64 genera and 153 species in 16 families are being documented. The total number of known species has been updated based on the availability of taxonomic literatures from Pakistan. In 2007, Insect Fauna of Azad Jammu & Kashmir was updated and it lists only 16 known species in order Diptera where as there is no such documented information so far available on the dipterous fauna of Gilgit-Baltistan. However, during the last few decades, relatively a few studies have been conducted on some major group of flies, i.e., Syrphidae, Sepsidae, Calliphoridae, and Tephritidae from Azad Kashmir and Gilgit-Baltistan. Among these, Syrphidae represents 53 species which is the highest number of species recorded, followed by Sepsidae and Calliphoridae with 20 and 18 species, respectively. The present diversity does not reflect the true species account in the northern areas; the important biogeographic area that exhibits a very heterogeneous fauna, not only because of the high mountains with valleys (the Hindu Kush and Karakoram ranges of the Western Himalayas) but also the junction points of the world’s two largest zoogeographical regions (the Oriental and Palaearctic). Some common families, i.e., Stratiomyidae, Asilidae, Bombyliidae, Muscidae, Conopidae, Pipinculidae, Tachinidae, and some other families which are common in high mountainous regions of northern Pakistan still need to be explored in the future studies. The complete locality data for each valid species are presented as the baseline for future studies from northern areas of Pakistan, i.e., Azad Jammu & Kashmir and Gilgit-Baltistan.

Twenty-Three Ur III Texts from Detroit Institute of Arts

The twenty-three Ur III cuneiform texts presented in this article are housed in the collections of the Detroit Institute of Arts. This article publishes thirteen Neo-Sumerian tablets from Puzriš-Dagan which primarily deal with animals, and a further ten texts from Umma, including five messenger texts. The aim of the article is to offer an edition and an updated catalogue of these texts, with a special focus on the Neo-Sumerian administration.

Gravitationally lensed quasars in Gaia – IV. 150 new lenses, quasar pairs, and projected quasars

ABSTRACT We report the spectroscopic follow-up of 175 lensed quasar candidates selected using Gaia Data Release 2 observations following Paper III of this series. Systems include 86 confirmed lensed quasars and a further 17 likely lensed quasars based on imaging and/or similar spectra. We also confirm 11 projected quasar pairs and 11 physical quasar pairs, while 25 systems are left as unclassified quasar pairs – pairs of quasars at the same redshift, which could be either distinct quasars or potential lensed quasars. Especially interesting objects include eight quadruply imaged quasars of which two have BAL sources, an apparent triple, and a doubly lensed LoBaL quasar. The source redshifts and image separations of these new lenses range between 0.65–3.59 and 0.78–6.23 arcsec, respectively. We compare the known population of lensed quasars to an updated mock catalogue at image separations between 1 and 4 arcsec, showing a very good match at z < 1.5. At z > 1.5, only 47 per cent of the predicted number are known, with 56 per cent of these missing lenses at image separations below 1.5 arcsec. The missing higher redshift, small-separation systems will have fainter lensing galaxies, and are partially explained by the unclassified quasar pairs and likely lenses presented in this work, which require deeper imaging. Of the 11 new reported projected quasar pairs, 5 have impact parameters below 10 kpc, almost tripling the number of such systems, which can probe the innermost regions of quasar host galaxies through absorption studies. We also report four new lensed galaxies discovered through our searches, with source redshifts ranging from 0.62 to 2.79.

Oligophlebia hibiscivora sp. nov., a new species from south-eastern China (Lepidoptera, Sesiidae)

A new species, Oligophlebia hibiscivora Yu, Kallies & Arita sp. nov., is described from south-eastern China. Superficially, it is similar to Oligophlebia insurgia Kallies, 2020 but it differs by external features of the abdomen as well as the male genitalia characters. The larva of this new species feed in Hibiscus tiliaceus L. (Malvaceae) and was found in the urban area of Xiamen (Fujian Province) and in Hongkong. Images of male and female specimens, genitalia and pupa of the new species are provided as well as the image of the female genitalia of Oligophlebia minor Xu & Arita, 2014. An updated catalogue of the species of the genus Oligophlebia Hampson, 1893 and a key of Chinese species are provided.

Seismicity Scenarios for the Remaining Operating Period of the Gas Field in Groningen, Netherlands

AbstractIn recent years, induced seismicity at the Groningen gas field caused increasing public concern and became a critical factor for future gas production plans. Zöller and Holschneider (2016) estimated the upper bound of the 90% confidence interval for the maximum possible magnitude based on the earthquake catalog until 2016 and found M 4.4. In this study, we show that the updated estimate for earthquake activity until 2022 decreases to M 4.0. For the 95% confidence interval, the upper bound that was infinite for the catalog until 2016 decreases to the value M 4.2 for the updated catalog. Because the frequency–magnitude distribution is stable within the uncertainties, it is likely that the growth of the earthquake catalog since 2016 has led to decreasing uncertainties and thus to smaller confidence intervals. Second, we find that a model based on rate-and-state dependent friction with additional aftershocks fits the available data well. Despite the overall decreasing earthquake rate resulting from decreasing production volumes, scenario calculations based on simulated pressure and compaction data indicate a considerable probability that the maximum expected magnitude in the next 30 yr exceeds the maximum observed magnitude from the past 30 yr.

Earthquake Swarms in Southern Hispaniola Revealed by Spatiotemporal Evolution of Seismicity from Multi-Station Template Matching

ABSTRACT Earthquake swarms have provided useful insights into driving mechanisms for triggered earthquakes. However, a majority of earthquake swarms consist of microseismicity in which observations sometimes are limited because of detection ability. Here, we apply a multi-station template matching technique to two temporary seismic networks and investigate microseismicity in southern Hispaniola. We detect a total of 6065 and 1366 new events for the 2010 and 2013–2014 datasets, respectively, using templates from pre-existing catalogs. The magnitude of completeness (Mc) of our updated catalogs drops from 1.7 to 1.2 and from 2.2 to 1.4 for the 2010 and 2013–2014, respectively, after combining new detections with the templates. With the improvement of seismic detections, the spatiotemporal distribution of the seismicity showcases three instances of earthquake swarms. The first one is located offshore on the Trois Baies fault, with over one thousand events triggered during mid-February to early March 2010, whereas the other one is distributed along the western Léogâne fault, which occurs within a day and shows many earthquakes with similar waveforms. The third one is found in the north of Lake Enriquillo in the Dominican Republic, which outlines a nearly vertical fault plane. Our updated earthquake catalogs and observations of these swarms provide necessary information for seismic hazard assessment in southern Hispaniola and will facilitate continued investigations of seismology in the area.

Ontology-based approach to real-time risk management and cyber-situational awareness

The requirement of continuous risk assessment and management is attracting growing attention because of the need of keeping risk under control. Over the years, companies are dealing with a growing number of malicious actions coming from heterogeneous sources, so risk management must be dynamic in real-time to define action strategies and validate the effectiveness of the safeguards in place. This exposure makes it imperative to use sensor-based systems to detect anomalies or to have an updated catalog of vulnerabilities to understand the situation in which the system finds itself and its level of risk. Such a wealth of heterogeneous information has led to the use of ontologies to organize data, as they allow the extraction of new concepts and behaviors, for instance, measuring the risk level of a system or generating metrics for decision support systems. This paper presents an ontology to describe different types of anomalies, merged with previously developed models for Cyber-Threat Intelligence, becoming a proposal to define real-time risk management in a converged secure environment with physical and logical elements, using these ontologies and SPARQL Rules to infer knowledge and calculate dynamically the risk level of the system.

New Local Volume Dwarf Galaxy Candidates from the DESI Legacy Imaging Surveys

We undertook a search for new dwarf galaxies in the vicinity of relatively isolated nearby galaxies with distances $D < 12$ Mpc and stellar masses in the $2\times10^{11}-3\times10^8~M_{\odot}$ interval, using the data from the DESI Legacy Imaging Surveys. Around the 46 considered Local Volume galaxies, $67$ new candidates for satellites of these galaxies were found. About half of them are classified as spheroidal dwarfs of low surface brightness. The new galaxies are included in the Local Volume database (LVGDB), which now contains 1421 objects, being 63% more than the Updated Nearby Galaxy Catalog.

Stellar Loci. VI. An Updated Catalog of the Best and Brightest Metal-poor Stars

We employ Gaia, Two Micron All Sky Survey, and ALLWISE photometry, as well as astrometric data from Gaia, to search for relatively bright very metal-poor (VMP; [Fe/H] < −2.0) giant star candidates using three different criteria: (1) the derived Gaia photometric metallicities from Xu et al., (2) the lack of stellar molecular absorption near 4.6 μm, and (3) their high tangential velocities. With different combinations of these criteria, we have identified six samples of candidates with G < 15: the Gold sample (24,304 candidates), the Silver GW sample (40,157 candidates), the Silver GK sample (120,452 candidates), the Bronze G sample (291,690 candidates), the Bronze WK sample (68,526 candidates), and the Low-b sample (4645 candidates). The Low-b sample applies to sources with low Galactic latitude, ∣b∣ < 10°, while the others are for sources with ∣b∣ > 10°. By crossmatching with results derived from medium-resolution spectroscopy (R ∼ 1800) from LAMOST DR8, we establish that the success rate for identifying VMP stars is 60.1% for the Gold sample, 39.2% for the Silver GW sample, 41.3% for the Silver GK sample, 15.4% for the Bronze G sample, 31.7% for the Bronze WK sample, and 16.6% for the Low-b sample, respectively. An additional strict cut on the quality parameter RUWE < 1.1 can further increase the success rate of the Silver GW, Silver GK, and Bronze G samples to 46.9%, 51.6%, and 29.3%, respectively. Our samples provide valuable targets for high-resolution follow-up spectroscopic observations and are made publicly available.

A High-Resolution Earthquake Catalog for the 2004 Mw 6 Parkfield Earthquake Sequence Using a Matched Filter Technique

Abstract We present the high-resolution Parkfield matched filter relocated earthquake (PKD-MR) catalog for the 2004 Mw 6 Parkfield earthquake sequence in central California. We use high-quality seismic data recorded by the borehole High Resolution Seismic Network combined with matched filter detection and relocations from cross-correlation derived differential travel times. We determine the magnitudes of newly detected events by computing the amplitude ratio between the detections and templates using a principal component fit. The relocated catalog spans from 6 November 2003 to 28 March 2005 and contains 13,914 earthquakes, which is about three times the number of events listed in the Northern California Seismic Network catalog. Our results on the seismicity rate changes before the 2004 mainshock do not show clear precursory signals, although we find an increase in the seismic activity in the creeping section of the San Andreas fault (SAF) (about ∼30 km northwest of the mainshock epicenter) in the weeks prior to the mainshock. We also observe a decrease in the b-value parameter in the Gutenberg–Richter relationship in the creeping section in the weeks prior to the mainshock. Our results suggest stress is increasingly released seismically in the creeping section, accompanied by a decreasing aseismic creeping rate before the mainshock occurrence. However, b-value and seismicity rates remain stable in the Parkfield section where the 2004 mainshock ruptured. This updated catalog can be used to study the evolution of aftershocks and their relations to afterslip following the 2004 Parkfield mainshock, seismicity before the mainshock, and how external stresses interact with the Parkfield section of the SAF and the 2004 sequence.

Spectroscopic follow-up of a subset of the Gaia/IPHAS catalogue of Hα-excess sources

ABSTRACT State-of-the-art techniques to identify Hα emission-line sources in narrow-band photometric surveys consist of searching for Hα excess with reference to nearby objects in the sky (position-based selection). However, while this approach usually yields very few spurious detections, it may fail to select intrinsically faint and/or rare Hα-excess sources. In order to obtain a more complete representation of the heterogeneous emission-line populations, we recently developed a technique to find outliers relative to nearby objects in the colour–magnitude diagram (CMD-based selection). By combining position-based and CMD-based selections, we built an updated catalogue of Hα-excess candidates in the Northern Galactic Plane. Here, we present spectroscopic follow-up observations and classification of 114 objects from this catalogue that enables us to test our novel selection method. Out of the 70 spectroscopically confirmed Hα-emitters in our sample, 15 were identified only by the CMD-based selection, and would have been thus missed by the classic position-based technique. In addition, we explore the distribution of our spectroscopically confirmed emitters in the Gaia CMD. This information can support the classification of emission-line sources in large surveys such as the upcoming WEAVE and 4-m Multi-Object Spectroscopic Telescope, especially if augmented with the introduction of other colours.

First record of parasitism in soldier flies by tachinids: Lixophaga stratiophaga Gudin, sp. nov. (Diptera: Tachinidae), reared from Ptecticus testaceus (Fabricius) (Diptera: Stratiomyidae) in Amazon rainforest and updated catalogue of dipteran hosts of Tachinidae

AbstractAlthough tachinids parasitise a wide variety of insects, two‐winged flies are not commonly recorded as hosts. Of the host records from Diptera, most are from larvae of Tabanidae and Tipulidae, with a few occasional records in other families. We present here the first record of parasitism in soldier flies by tachinids and the first record of a dipteran host in the Neotropical Region. Lixophaga stratiophaga Gudin, sp. nov. (Diptera: Tachinidae: Blondeliini) is described and illustrated from pupae of Ptecticus testaceus (Fabricius) (Diptera: Stratiomyidae: Sarginae), collected in fallen fruit of Casearia combaymensis Tul. (Salicaceae) in a reserve of Amazon rainforest in Manaus, state of Amazonas, Brazil. We include notes about its host and discuss the most relevant diagnostic characters for New World species of Lixophaga. An updated and annotated catalogue of dipteran hosts of Tachinidae is also provided, with an overview of host use and oviposition strategies of their respective parasitoids.

The missing radial velocities of Gaia: Blind predictions for DR3

ABSTRACT While Gaia has observed the phase space coordinates of over a billion stars in the Galaxy, in the overwhelming majority of cases it has only obtained five of the six coordinates, the missing dimension being the radial (line-of-sight) velocity. Using a realistic mock data set, we show that Bayesian neural networks are highly capable of ‘learning’ these radial velocities as a function of the other five coordinates, and thus filling in the gaps. For a given star, the network outputs are not merely point predictions, but full posterior distributions encompassing the intrinsic scatter of the stellar phase space distribution, the observational uncertainties on the network inputs, and any ‘epistemic’ uncertainty stemming from our ignorance about the stellar phase space distribution. Applying this technique to the real Gaia data, we generate and publish a catalogue of posteriors (median width: 25 km s−1) for the radial velocities of 16 million Gaia DR2/EDR3 stars in the magnitude range 6 &amp;lt; G &amp;lt; 14.5. Many of these gaps will be filled in very soon by Gaia DR3, which will serve to test our blind predictions. Thus, the primary use of our published catalogue will be to validate our method, justifying its future use in generating an updated catalogue of posteriors for radial velocities missing from Gaia DR3.

Updated catalog of the Chilean wedge-shaped beetles (Coleoptera: Ripiphoridae) with the first records of Macrosiagon flavipennis (LeConte) in Chile

The biology and ecology of wedge-shaped beetles (Coleoptera: Ripiphoridae) are scarcely known in the Neotropical realm. Chilean species of this beetle family are currently represented by two genera: Macrosiagon Hentz, 1830 and Ripiphorus Bosc, 1791, and three species, only known from their type localities. Here, we present an updated catalog of Chilean Ripiphoridae, along with the new distributional and biology records. Also, Macrosiagon flavipennis LeConte, 1866 (Ripiphorinae: Macrosiagonini) has been reported for the first time in Chile. We discuss the reasons for the presence of M. flavipennis in urban areas, the state of knowledge of the endemic species presents in Chile in relation to their distribution and the opportunity to use opportunistic records to better understand their natural history.

Catalog of spiral arm tangents (Galactic longitudes) in the Milky Way, and the age gradient based on various arm tracers

An updated catalog of 205 observed tangents to the spiral arms (in Galactic longitudes) since 1980 is presented. This represents an addition of 80 arm tangents in 6 years (since 2016). Most arm tangents are observed at telescopes in the radio régime.In this study, the separation of each arm tracer from the dust lane is analysed to obtain the relative speed away from the dust lane (an age gradient). Each arm tracer is observed to be separated from the dust lane, showing an age gradient of about 11.3 ±2 Myr/kpc across the spiral arm – a relative speed away from the dust lane of about 87 ±10 km/s.

Ultra-wide Bandwidth Observations of 19 Pulsars with Parkes Telescope

Flux densities are basic observation parameters to describe pulsars. In the most updated pulsar catalog, 24% of the listed radio pulsars have no flux density measurement at any frequency. Here, we report the first flux density measurements, spectral indices, pulse profiles, and correlations of the spectral index with pulsar parameters for 19 pulsars employing the Ultra-Wideband Low receiver system installed on the Parkes radio telescope. The results for spectral indices of 17 pulsars are in the range between −0.6 and −3.10. The polarization profiles of thirteen pulsars are shown. There is a moderate correlation between the spectral index and spin frequency. For most pulsars detected, the signal-to-noise ratio of pulse profile is not high, so DM, Faraday rotation measure, and polarization cannot be determined precisely. Twenty-nine pulsars were not detected in our observations. We discuss the possible explanations for why these pulsars were not detected.

New Craters on Mars: An Updated Catalog

AbstractWe present a catalog of new impacts on Mars. These craters formed in the last few decades, constrained with repeat orbital imaging. Crater diameters range from 58 m down to &lt;1 m. For each impact, we report whether it formed a single crater or a cluster (58% clusters); albedo features of the blast zone (88% halos; 64% linear rays; 10% arcuate rays; majority dark‐toned; 4% light‐toned; 14% dual‐toned); and exposures of ice (4% definite; 2% possible). We find no trends in the occurrences of clusters with latitude, elevation, or impact size. Albedo features do not depend on atmospheric fragmentation. Halos are more prevalent at lower elevations, indicating an atmospheric pressure dependence; and around smaller impacts, which could be an observational bias. Linear rays are more likely to form from larger impacts into more consolidated material and may be enhanced by lower atmospheric pressure at higher elevations. Light‐ and dual‐toned blast zones occur in specific regions and more commonly around larger impacts, indicating excavation of compositionally distinct material. Surfaces covered with bright dust lacking cohesion are favored to form detectable surface features. The slope of the cumulative size frequency distribution for this data set is 2.2 for diameters &gt;8 m (differential slope 2.9), significantly shallower than the slope of new lunar craters. We believe that no systematic biases exist in the Martian data set sufficient to explain the discrepancy. This catalog is complete at the time of writing, although observational biases exist, and new discoveries continue.

StrayCats. II. An Updated Catalog of NuSTAR Stray Light Observations

We present an updated catalog of StrayCats (a catalog of NuSTAR stray light observations of X-ray sources) that includes nearly 18 additional months of observations. StrayCats v2 has an added 53 sequence IDs, 106 rows, and three new identified stray light (SL) sources in comparison to the original catalog. The total catalog now has 489 unique sequence IDs, 862 entries, and 83 confirmed StrayCats sources. Additionally, we provide new resources for the community to gauge the utility and spectral state of the source in a given observation. We have created long-term light curves for each identified SL source using MAXI and Swift/BAT data when available. Further, source extraction regions for 632 identified SL observations were created and are available to the public. In this paper we present an overview of the updated catalog and new resources for each identified StrayCats SL source.

Discovery of new TESS pulsating hot subdwarfs

Aims. This work is dedicated to a search for new pulsating hot subdwarfs in TESS photometric data which could have been missed in previous searches. Methods. By matching catalogues of hot subdwarfs with TESS targets and using luminosities from Gaìa parallaxes, a list of 1389 candidate hot subdwarfs observed by TESS was created. The periodograms of these stars were inspected, and the stars were classified according to variability type. Results. An updated catalogue of all known pulsating hot subdwarfs is presented. A number of probable pulsating binaries have been identified, which might prove useful for verifying the asteroseismic masses. The mean masses of p- and g-mode pulsators are estimated from the stellar parameters. Conclusions. A list of 63 previously unknown pulsating hot subdwarfs observed by TESS is presented. More than half of the stars previously identified as pure p-mode pulsators are found to have frequencies in the g-mode region as well. As a result, hybrid p- and g-mode pulsators occur over the whole instability strip.