2008ApJ...679..512S

Query : 2008ApJ...679..512S

2008ApJ...679..512S - Astrophys. J., 679, 512-530 (2008/May-3)

A study of the ρ Ophiuchi cloud: mapping the distribution and the motions of interstellar gas.

SNOW T.P., DESTREE J.D. and WELTY D.E.

Abstract (from CDS):

Guest Investigator results from Hipparcos, combined with high-resolution optical spectra obtained with the Anglo-Australian Observatory, Kitt Peak National Observatory, and McDonald Observatory, are used to create a three-dimensional map of the stars and several interstellar gas components in the ρ Oph cloud complex. Many principal gas components are interspersed among the bright stars, which can be subdivided into three main groupings on the basis of right ascension and declination. At least one of these main gas components may persist over about 10 pc laterally, and there is evidence for an overall bulk movement of the gas, as determined from the observed radial velocities. We find the diffuse portion of the cloud complex to be clumpy, scattered over a distance range of ∼110-150 pc. We find the most likely distance to the dense molecular cloud to be 122±8 pc.

Abstract Copyright: ∼

Journal keyword(s): ISM: Abundances - ISM: Atoms - ISM: individual (ρ Oph) - ISM: Kinematics and Dynamics - ISM: Structure

Simbad objects: 27

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Number of rows : 27
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 NAME G Cloud Cld 03 00 +50.2           ~ 73 0
2 NAME Centaurus A Sy2 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4482 3
3 NAME Upper Centaurus Lupus As* 15 24 -41.9           ~ 472 1
4 * b Sco * 15 50 58.7444628720 -25 45 04.658676984 3.84 4.552 4.635     B1.5Vn 291 0
5 * 2 Sco ** 15 53 36.71880 -25 19 37.7087 3.86 4.52 4.59     B2.5Vn 159 0
6 * pi. Sco EB* 15 58 51.1132378 -26 06 50.788602 1.82 2.71 2.91 3.00 3.20 B1V+B2:V: 397 0
7 * del Sco SB* 16 00 20.00528 -22 37 18.1431 1.30 2.20 2.32 2.36 2.49 B0.3IV 740 0
8 * bet01 Sco bC* 16 05 26.2319826 -19 48 19.630018 1.68 2.55 2.62 2.60 2.69 B1V 561 0
9 * ome Sco bC* 16 06 48.4249866846 -20 40 09.079866331 3.10 3.92 3.97 3.91 3.99 B1V 470 0
10 * nu. Sco ** 16 11 59.73568 -19 27 38.5361 3.42 4.05 4.00 3.90 3.87 B2V 381 0
11 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1330 1
12 HD 147009 * 16 20 03.9804239064 -20 02 41.528806944   8.32 8.06     A0V 88 1
13 * omi Sco V* 16 20 38.1737722092 -24 10 09.495477665 5.99 5.40 4.57 3.69 2.93 A5II 257 0
14 * sig Sco bC* 16 21 11.3157134 -25 35 34.051476 2.32 3.02 2.89 1.69 1.58 B1III+B1:V 870 0
15 HD 147701 Ro* 16 24 21.3184926168 -25 01 31.448678376 9.66 9.74 9.20   7.42 B5III 133 0
16 NAME rho Oph Complex reg 16 25 -23.5           ~ 79 1
17 HD 147888 ** 16 25 24.2915998776 -23 27 36.747568152 6.71 7.05 6.74     B3V 215 0
18 HD 147889 Y*O 16 25 24.3163637976 -24 27 56.569805208 8.56 8.73 7.90     B2V 476 1
19 * rho Oph B * 16 25 35.0324153856 -23 26 46.923516744   5.26 6.66     B2V 128 0
20 HD 147932 Ro* 16 25 35.0813422344 -23 24 18.806143896 7.24 7.59 7.27     B5V 130 0
21 * rho Oph ** 16 25 35.11766 -23 26 49.8150 4.30 4.85 4.63 4.27 3.96 B2IV+B2V 648 0
22 * rho Oph A * 16 25 35.1185711280 -23 26 49.831640736 4.3 5.22 5.05     B1V 417 0
23 * chi Oph Be* 16 27 01.4355697915 -18 27 22.499961252 3.95 4.71 4.43 3.97 3.73 B2Vne 598 0
24 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3628 1
25 * i Sco * 16 30 12.4752690460 -25 06 54.796568058 3.93 4.72 4.79 4.85 4.99 B3V 304 1
26 * zet Oph Be* 16 37 09.5400587698 -10 34 01.509742704 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1839 0
27 * alf Oph ** 17 34 56.06945 +12 33 36.1346 2.32 2.22 2.07 1.93 1.85 A5IVnn 478 0

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