2001ApJ...562..394C


C.D.S. - SIMBAD4 rel 1.7 - 2020.06.02CEST10:15:01

2001ApJ...562..394C - Astrophys. J., 562, 394-399 (2001/November-3)

Space telescope imaging spectrograph observations of interstellar oxygen and krypton in translucent clouds.

CARTLEDGE S.I.B., MEYER D.M., LAUROESCH J.T. and SOFIA U.J.

Abstract (from CDS):

We have obtained high-resolution Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph (STIS) observations of O I λ1356 and Kr I λ1236 absorption in 11 sight lines characterized by high extinction, large H I column densities, and/or long path lengths. Previous Goddard High Resolution Spectrograph (GHRS) measurements of these weak features in seven relatively nearby diffuse clouds have shown no evidence for density-dependent depletion of either oxygen or krypton and have yielded a weighted mean gas-phase abundance ratio of log[N(O)/N(Kr)]GHRS=5.56±0.04. Our STIS measurements yield a lower weighted mean of log[N(O)/N(Kr)]STIS=5.48; the difference is due primarily to several translucent sight lines in the STIS data set that diverge from the GHRS value. These translucent cloud sight lines pass near dense, star-forming regions, notably the ρ Oph, Orion, and Taurus molecular clouds. Since Kr, as a noble gas, should not be depleted much into grains, these cases suggest a trend toward the enhanced oxygen depletion predicted for denser ISM clouds.

Abstract Copyright:

Journal keyword(s): ISM: Dust, Extinction - ISM: Abundances

Status at CDS:  

Simbad objects: 28

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Number of rows : 28

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 * zet Per V* 03 54 07.9224751 +31 53 01.081262 2.19 2.97 2.85 2.71 2.62 B1Ib 812 0
2 * eps Per bC* 03 57 51.2320472 +40 00 36.775143 1.71 2.71 2.89 2.96 3.14 B1.5III 494 0
3 * 62 Tau * 04 23 59.7629429746 +24 18 03.527426906 6.18 6.499 6.337     B 187 0
4 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3444 0
5 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 1961 1
6 * lam Ori ** 05 35 08.27761 +09 56 02.9611 2.45 3.48 3.66 3.72 3.89 O8IIIf+B0.5V 264 1
7 NAME Trapezium Cluster As* 05 35 16.5 -05 23 14           ~ 1455 1
8 HD 37061 Or* 05 35 31.3653515656 -05 16 02.586154009 6.44 7.09 6.83     O9V 318 0
9 * eps Ori s*b 05 36 12.81335 -01 12 06.9089 0.48 1.51 1.69 1.76 1.93 B0Ia 856 0
10 NGC 2023 RNe 05 41 37.9 -02 15 52           ~ 568 1
11 HD 37903 Em* 05 41 38.3889407943 -02 15 32.476182358 7.32 7.94 7.83 7.64 7.52 B3IV 320 1
12 * kap Ori s*b 05 47 45.3888404 -09 40 10.577707 0.87 1.88 2.06 2.09 2.27 B0.5Ia 545 0
13 NAME ORI MOL CLOUD MoC 05 56 -01.8           ~ 842 1
14 * tau CMa bL* 07 18 42.4864191 -24 57 15.741299 3.26 4.25 4.40 4.44 4.62 O9II 394 0
15 HD 75309 V* 08 47 27.9649087955 -46 27 03.957882089 7.05 7.82 7.84 8.77   B2Ib/II 63 0
16 NAME Car Arm PoG 10 00 -60.0           ~ 378 1
17 * rho Oph D ** 16 25 24.2937199705 -23 27 36.816821785 6.71 7.05 6.74     B3/4V 193 1
18 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3006 0
19 NAME Ophiuchus D MoC 16 28 29.2 -24 18 25           ~ 102 0
20 * zet Oph Be* 16 37 09.5390545 -10 34 01.529471 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1722 2
21 NAME Sco OB 1 As* 16 53.5 -41 57           ~ 191 0
22 NGC 6231 OpC 16 54 08.51 -41 49 36.0   2.83 2.6     ~ 485 0
23 V* V1297 Sco Al* 16 56 05.2156792717 -40 20 57.576409562 7.87 9.11 9.29 9.29   O7.5Vz 121 0
24 HD 175360 * 18 56 00.6737745242 -23 10 25.512942247   5.91 5.93     B5/7III 40 0
25 HD 185418 * 19 38 27.4810594267 +17 15 26.046198639 7 7.639 7.485     B0.5V 115 0
26 HD 203532 * 21 33 54.5737752124 -82 40 59.110819449 6.15 6.51 6.38     B3IV/V 81 0
27 HD 207198 * 21 44 53.2790298387 +62 27 38.042162728 5.61 6.25 5.94 5.66 5.49 O8.5II 321 0
28 Ass Cep OB 2 As* 21 51 +60.0           ~ 279 0

    Equat.    Gal    SGal    Ecl

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2020.06.02-10:15:01

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