J/other/NewA/9.509 IRAS observations of Be stars (Zhang+, 2004)
A new approach to IRAS observations of Be stars.
Zhang P., Chen P.S., He J.H.
<New Astronomy, 9, 509-524 (2004)>
=2004NewA....9..509Z 2004NewA....9..509Z
ADC_Keywords: Stars, Be ; Infrared sources
Keywords: Stars: emission-line, Be - Infrared: stars
Abstract:
The IRAS associations for 193 Be stars are identified in this paper.
From the infrared colors, the IRAS low-resolution spectra (LRS) and
the spectral types, some physical properties and environment of the
samples are discussed. It can be concluded that not only free-free
emission or free-bound emission from the circumstellar ionized gas can
be responsible for the large IR excesses of Be stars as suggested
previously, but also, for some Be stars, thermal radiation from the
circumstellar dust and/or nebula around the star can produce large IR
excess as well. It is also found that the far IR excess of Be stars
increases.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 154 193 IRAS associations of Be stars
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See also:
III/67 : Catalogue of Be stars (Jaschek+, 1982)
II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)
III/197 : IRAS Low Resolution Spectra (IRAS team, 1987)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- [JE82] Star number (from Cat. III/67 recno)
6- 19 A14 --- SpType MK spectral type from Cat. III/67
21- 32 A12 --- Name Common name
33- 42 A10 --- IRAS IRAS designation
44- 45 I2 h RAh Right ascension (B1950.0)
47- 48 I2 min RAm Right ascension (B1950.0)
50- 54 F5.2 s RAs Right ascension (B1950.0)
56 A1 --- DE- Declination sign (B1950.0)
57- 58 I2 deg DEd Declination (B1950.0)
60- 61 I2 arcmin DEm Declination (B1950.0)
63- 66 F4.1 arcsec DEs Declination (B1950.0)
68- 72 A5 --- LRS LRS classification (1)
74- 78 F5.2 mag Vmag V magnitude from Cat. III/67
80- 86 F7.3 Jy F12um ? IRAS flux at 12µm
88- 94 F7.3 Jy F25um ? IRAS flux at 25µm
96-103 F8.3 Jy F60um ? IRAS flux at 60µm
105-154 A50 --- Note Extended source name from IRAS PSC (II/125)
and/or dust feature from IRAS LRS (III/197)
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Note (1): LRS classification from Kwok et al., 1997, Cat. J/ApJS/112/557 or
from the LRS Atlas (1986, Cat. III/197) in the bracket.
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History:
Prepared via OCR at CDS.
(End) Patricia Vannier [CDS] 01-Nov-2005