Observations of Stellar Maser Sources with no IRAS Counterpart

Abstract

We investigated stellar maser sources with no IRAS counterpart at the radio, middle-infrared, and near-infrared wavelengths. A 43 GHz SiO maser search for 120 2MASS/MSX objects, and 10 OH 1612 MHz sources with no or a very faint MSX counterpart, resulted in 43 SiO detections: one OH 1612 MHz source, 2 near-infrared stars, and 40 MSX sources. Additional near-infrared J-, H-, and K-band observations of the OH 1612 MHz sources detected 5 near-infrared counterparts. Furthermore, middle-infrared imaging observations at 8.8, 9.7, 12.4, and 24.5 micron with the Subaru 8.2-m telescope found counterparts for 2 near-infrared stars with SiO masers, and counterparts for 6 OH 1612 MHz sources. However, 4 OH 1612 MHz sources were not detected in the sensitive near- and middle-infrared searches; three of these are relatively strong OH maser sources for which the positions were known accurately. We conclude that one of these (OH 028.286-01.801) must be a young object in a star-forming region.

PASJ 57, No.6 issue in press (1 color figure), full high res. figures available at ftp://ftp.nro.nao.ac.jp/nroreport/no629.pdf.gz. PASJ 57 No. 6 (Dec 25, 2005 issue) in press

References in corpus (5)

• SiO Maser Survey of IRAS Sources in the Inner Galactic Disk
• SiO Maser Survey of Cold IRAS Sources
• SiO Maser Survey of the Large-Amplitude Variables in the Galactic Center
• SiO Maser Survey toward the Inner Galactic Disk: 40 < l < 70 and |b| < 10
• Lithium in the Symbiotic Mira V407 Cyg

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• Water Maser Survey on AKARI and IRAS Sources: A Search for "Low-Velocity" Water Fountains
• Identification of Very Red Counterparts of SiO Maser and OH/IR Objects in the GLIMPSE Survey
• SiO Maser Spectra of V407 Cyg after the 2010 March Nova Outburst
• Accurate OH Maser Positions From The SPLASH Survey III: The Final 96 Square Degrees
• Kinematics of Red Variables in the Solar Neighborhood I. Basic Data Obtained by an SiO Maser Survey
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• Identification of late-type stars of class I
• Observations of V838 Mon in the CO rotational lines
• JVN observations of H2O masers around the evolved star IRAS 22480+6002
• KVN Monitoring Obsevations toward the Recent Outburst Symbiotic Star V407 Cygni