ROSAT detection of Class I protostars in the CrA Coronet.
Abstract
We analyze archival ROSAT data of the CrA star forming region. X-ray emission from five infrared Class I protostars in the Coronet cluster was recently found in ASCA data, however, with low spatial resolution and partly ambiguous source identification. ROSAT high spatial resolution data confirm the X-ray detection of three Class I protostars. The other two infrared protostars might be extincted to strongly for being detected in the softer ROSAT bandpass. Alternatively, the X-ray emission might be strongly variable and they might have been too faint in X-rays at the time of the ROSAT observations.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- June 1997
- Bibcode:
- 1997A&A...322L..37N
- Keywords:
-
- STARS: FORMATION;
- STARS: PRE-MAIN SEQUENCE;
- INFRARED: STARS;
- X-RAYS: STARS