IRAS point sources in the Ophiuchus molecular cloud complex - Optical identification

Abstract

view Abstract Citations (28) References (38) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS IRAS Point Sources in the Ophiuchus Molecular Cloud Complex: Optical Identification Ichikawa, Takashi ; Nishida, Minoru Abstract An attempt was made to optically identify 1433 IRAS point sources in a 170 sq. deg area of the Ophiuchus molecular cloud complex extending about 45 pc from ρ Oph to the north. Among 652 sources having fluxes of high or middle quality at 12 or 25 micron wavelengths, 577 are identified with stars, four with galaxies, while 71 have no optical candidates to 17 or 20 mag at I or R bands. With respect to the sources only detected at 60 and/or 100 micron, 33 are associated with galaxies and the remainder may be infrared cirrus. On the basis of the detailed study on the near-infrared Schmidt plates to 17 mag in a 5^deg^ X 5^deg^ area centered on ρ Oph, statistical properties of IRAS point sources are discussed with emphasis on the correlation with the molecular clouds, making this study useful for future studies of the global star formation in the cloud complex at near infrared or other wavelengths. Publication: The Astronomical Journal Pub Date: April 1989 DOI: 10.1086/115050 Bibcode: 1989AJ.....97.1074I Keywords: Infrared Astronomy Satellite; Molecular Clouds; Ophiuchi Clouds; Point Sources; Star Distribution; Globular Clusters; Interstellar Extinction; Protostars; Star Formation; T Tauri Stars; Astronomy; INTERSTELLAR: MATTER; INFRARED: GENERAL full text sources ADS | data products SIMBAD (187) NED (22)