1997A&A...325..228L

Query : 1997A&A...325..228L

1997A&A...325..228L - Astronomy and Astrophysics, volume 325, 228-236 (1997/9-1)

HST-GHRS observations of candidate β Pictoris-like circumstellar gaseous disks.

LECAVELIER DES ETANGS A., DELEUIL M., VIDAL-MADJAR A., LAGRANGE-HENRI A.-M., BACKMAN D., LISSAUER J.J., FERLET R., BEUST H. and MOUILLET D.

Abstract (from CDS):

We present HST-GHRS observations of four stars in search of β Pictoris-like circumstellar gaseous disks. We detected gas around HR 10, HR 2174 and 51 Oph at large distances from the stars; this gas is circumstellar since the absorption lines from very excited levels require densities incompatible with those found in the diffuse interstellar medium. The shape of the lines and the Mgii doublet ratio give evidence that clumpy gas is continuously falling onto these stars. Possible interpretations are discussed.

Abstract Copyright: ∼

Journal keyword(s): stars: circumstellar matter - planetary systems - stars: individual: β Pictoris - line: formation - ISM: clouds

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 HD 256 ** 00 07 18.2658367200 -17 23 13.173158760   6.311 6.203 7.36   A3Vn_sh 108 0
2 V* UX Ori Ae* 05 04 29.9878898040 -03 47 14.286732072 10.25 10.93 8.70 9.62 9.43 A4IVe 363 1
3 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 1907 1
4 HD 42111 * 06 08 57.9037271424 +02 29 58.885200456 5.86 5.80 5.73     B9V 125 0
5 HD 93563 Be* 10 46 57.4734035534 -56 45 25.890897908 4.82 5.15 5.23     B5III 72 0
6 * c Oph Be* 17 31 24.9538710166 -23 57 45.514802684 4.75 4.81 4.81 4.74 4.72 A0V 273 0
7 * eps Gru SB* 22 48 33.2980615128 -51 19 00.713323272   3.556 3.466     A2IVn 129 0

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