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[vsnet-chat 3876] Q1991/100
- Date: Wed, 20 Dec 2000 23:03:02 +0900 (JST)
- To: vsnet-chat, vsnet-id-2mass, vsnet-id-rosat, vsnet-newvar
- From: Taichi Kato <tkato>
- Subject: [vsnet-chat 3876] Q1991/100
- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
Q1991/100
I noticed that the Collins variable Q1991/100 is identified with a
G-type star with significant IR excess (IRAS source) and a likely ROSAT
identification. This star probably needs further detailed study.
The star is not very bright in 2MASS.
## Q1991/100
GSC2390.1549 051621.37 +304234.8 (2000.0) 8.88 1 N
USNO1200.03103888 051621.334 +304235.00 (2000.0) 9.4 10.5
2MASS 051621.243 +304232.49 (2000.0) 8.933 8.217 8.199
IRAS05131+3039 051309.8 +303924 (1950.0)
F12=12.02 F25=4.78 F60=0.76 F100=1.90L
VAR=38 LRS=15
blue featureless, spec.index=2.5
II: variable star with 'young' O-rich circumstellar shell
051621.3 +304234 (2000.0) Q1991/100 8.5 10.5
051620.5 +304233 (2000.0) 1RXS-F_J051620.6+304234 0.024 0.10 1.00
051622.3 +304240 (2000.0) IRAS05131+3039 11.860 4.871 0.770 1.849L 38% 2(LRS)
051622.3 +304240 (2000.0) SSC05131+3039 11.860 4.871 0.770 1.849L
051621.2 +304232 (2000.0) 1072 0.53 TYC2390.1549.1 plx=32.8(35.8) (0.13 0.15)
051621.1 +304231 (2000.0) 1048 0.71 TYC2-2390.1549.1 (10.55 0.06) (11.38 0.08)
051624.8 +304146 (2000.0) HD242063 10.8 G0
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