Abstract
view Abstract Citations (51) References (17) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS ICCD Speckle Observations of Binary Stars. IX. A Duplicity Survey of the Pleiades, Praesepe, and IC 4665 Clusters Mason, Brian D. ; Hartkopf, William I. ; McAlister, Harold A. ; Sowell, James R. Abstract Multiplicity of stars within clusters is a well-studied phenomenon. However, recent survey work done on the Hyades by Mason et al. (1993) would seem to indicate that even in the most often studied clusters, there may be binaries yet undiscovered. In order to expand the sample of cluster binaries with potentially short-period visual orbits, a speckle survey of 45 Pleiades, 54 Praesepe, and 22 IC 4665 bright stars (V is less than 10) for possible multiplicity was conducted at the KPNO 4 m Mayall telescope between 1987 October and 1991 November. Of these, three new binaries have been discovered: one in the Pleiades where the new component may be spectroscopic, another in Praesepe which has been confirmed from examinations of archival observations and also has been resolved by occultation, and the third in IC 4665. Continued study of these new binary stars could further refine the cluster distance moduli as well as the cluster mass-luminosity relations. Publication: The Astronomical Journal Pub Date: August 1993 DOI: 10.1086/116669 Bibcode: 1993AJ....106..637M Keywords: Binary Stars; Charge Coupled Devices; Pleiades Cluster; Star Clusters; Stellar Luminosity; Stellar Mass; Astronomy; BINARIES: VISUAL; OPEN CLUSTERS AND ASSOCIATIONS: INDIVIDUAL: PLEIADES; OPEN CLUSTERS AND ASSOCIATIONS: INDIVIDUAL: PRAESEPE; OPEN CLUSTERS AND ASSOCIATIONS: INDIVIDUAL: IC4665 full text sources ADS | data products SIMBAD (166) CDS (1) Related Materials (20) Part 1: 1987AJ.....93..183M Part 2: 1987AJ.....93..688M Part 3: 1987AJ.....94.1318L Part 4: 1989AJ.....97..510M Part 5: 1990AJ.....99..965M Part 6: 1992AJ....104..810H Part 7: 1993AJ....105..220M Part 8: 1993AJ....106..352H Part 10: 1993AJ....106.1639M Part 11: 1994AJ....108.2299H Part 12: 1996AJ....111..393A Part 13: 1996AJ....111..936H Part 14: 1996AJ....112.1169M Part 15: 1996AJ....112.2260M Part 16: 1997AJ....114.1623F Part 17: 1997AJ....114.1639H Part 18: 1997AJ....114.2112M Part 19: 1998AJ....115..821M Part 20: 1999AJ....118..509H Part 21: 2000AJ....119.3084H
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