Observations of the peculiar object MWC 560 in outburst
Creators
- 1. Athens, National Observatory (Greece)
- 2. Toledo, University, OH (USA)
- 3. NASA, Goddard Space Flight Center, Greenbelt, MD (USA)
Description
The results of ultraviolet spectroscopy, photoelectric photometry, and supplemental high-resolution H(alpha) spectroscopy of a photometric outburst of MWC 560 are discussed. Ultraviolet spectra are shown to be consistent with the ejection of an optically thick shell that produced strong absorption blends of Fe II and Cr II. The velocities reported exceed by far those previously found in symbiotic stars or recurrent novas. In addition to the variable high-velocity system of broad absorption features, a relatively stable system of Mg II, Mg I, Fe II, Cr II, and other ionic absorptions is observed. It is pointed out that the spectroscopic phenomena in MWC 560 resemble those found in XX Ophiuchi, but the velocities in the MWC 560 are an order of magnitude higher than those found in XX Oph. 30 refs
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 371
- Series
- Astrophys. J.
- Journal Page Range
- 761-771
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22078672
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ABSORPTION SPECTRA; BALMER LINES; CHROMIUM; IRON; MAGNESIUM; MASS TRANSFER; NOVAE; PHOTOMETRY; STELLAR WINDS; SYMBIOTIC STARS; ULTRAVIOLET SPECTRA; VELOCITY
- Descriptors DEC
- ALKALINE EARTH METALS; BINARY STARS; ELEMENTS; ERUPTIVE VARIABLE STARS; METALS; SPECTRA; STARS; STELLAR ACTIVITY; TRANSITION ELEMENTS; VARIABLE STARS