SiO MASERS IN ASYMMETRIC MIRAS. II. R CANCRI

Journal Article · Tue Dec 01 04:00:00 EST 2009 · Astrophysical Journal, Supplement Series

DOI:https://doi.org/10.1088/0067-0049/185/2/574; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21301468

Cotton, W D ^[1]; Ragland, S ^[2]; Pluzhnik, E A ^[3]; Danchi, W C ^[4]; Traub, W A ^[5]; Willson, L A ^[6]

---

1. National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903-2475 (United States)
2. W. M. Keck Observatory, 65-1120 Mamalahoa Hwy, Kamuela, HI 96743 (United States)
3. NASA, Ames Research Center, Moffett Field, CA 94035 (United States)
4. NASA Goddard Space Flight Center, Exoplanets and Stellar Astrophysics, Code 667, Greenbelt, MD 20771 (United States)
5. Jet Propulsion Laboratory, California Institute of Technology, M/S 301-451, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)
6. Department of Physics and Astronomy, Iowa State University, Ames, IA 50014 (United States)

This is the second paper in a series of multi-epoch observations of the SiO masers at 7 mm wavelength in several asymptotic giant branch stars from a sample of Mira variable stars showing evidence of asymmetric structure in the infrared. These stars have been observed interferometrically in the infrared by the Infrared Optical Telescope Array and with Very Long Baseline Array measurements of the SiO masers. In this paper, we present the observations of R Cancri (R Cnc). The systemic velocity of R Cnc is estimated to be 15.8 {+-} 0.2 km s{sup -1}. A comparison is made with the model calculations of Gray et al. which predict some but not all observed features.

• OSTI ID: 21301468
• Journal Information: Astrophysical Journal, Supplement Series, Journal Name: Astrophysical Journal, Supplement Series Journal Issue: 2 Vol. 185; ISSN 0067-0049; ISSN APJSA2
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
99 GENERAL AND MISCELLANEOUS
ASYMMETRY
ASYMPTOTIC SOLUTIONS
ATMOSPHERES
MASERS
SILICON OXIDES
TELESCOPES
VARIABLE STARS