1999A&AS..134..257L


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.17CET17:43:51

1999A&AS..134..257L - Astron. Astrophys., Suppl. Ser., 134, 257-262 (1999/January-2)

High-velocity interstellar clouds towards the M 15 globular cluster. I. Low resolution optical data.

LEHNER N., ROLLESTON W.R.J., RYANS R.S.I., KEENAN F.P., BATES B., POLLACCO D.L. and SEMBACH K.R.

Abstract (from CDS):

We present low resolution interstellar spectra of the CaII K and NaI D lines towards 12 stars in the M 15 globular cluster. These sightlines are used to study the small scale structure of the interstellar medium, over scales of a few arcseconds to a few arcminutes. A high-velocity cloud is detected in the CaII and NaI lines at a LSR velocity of approximately ∼70km/s. Tentative velocity and equivalent width variations are observed on scales of a few arcseconds; however, higher resolution data are necessary to quantify the magnitude of these variations. We discuss these observations and their importance for future studies of this high velocity gas at high spectral resolution.

Abstract Copyright:

Journal keyword(s): ISM: high-velocity clouds - ISM: general - ISM: clouds - ISM: structure - globular cluster: individual: M 15 - stars: early-type

Nomenclature: Table 1: Cl* NGC 7078 LRR N1 N=1.

Simbad objects: 15

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Number of rows : 15

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 V* SY Equ bC* 21 23 28.8088793903 +09 55 54.912227772 7.37 8.33 8.53     B0.5IIIn 83 0
2 2MASS J21293507+1206037 RG* 21 29 35.0884756000 +12 06 03.727520764   15.84 15.09     ~ 11 0
3 2MASS J21294295+1209534 RG* 21 29 42.959 +12 09 53.41   16.11 15.25     ~ 24 0
4 NGC 7078 127 * 21 29 48.8686284152 +12 03 07.699655915     14.49     ~ 9 0
5 NGC 7078 143 * 21 29 49.7254867490 +12 10 43.966120789   16.43 16.4     ~ 5 0
6 NGC 7078 154 * 21 29 50.1562019797 +12 09 33.204963957   15.60 14.86     ~ 9 0
7 2MASS J21295270+1211534 RG* 21 29 52.6969171968 +12 11 53.357646348   15.92 15.22   14.34 ~ 5 0
8 NGC 7078 258 * 21 29 53.339 +12 10 42.76   16.56 16.5     ~ 3 0
9 NGC 7078 84 * 21 29 57.886 +12 10 03.65     16.44     ~ 4 0
10 NAME IVC in M 15 Cld 21 29 58 +12 10.0           ~ 13 0
11 NGC 7078 80 * 21 29 58.180 +12 09 54.26     16.56     ~ 5 0
12 M 15 GlC 21 29 58.33 +12 10 01.2   3       ~ 2870 0
13 NGC 7078 48 * 21 30.0 +12 10   16.57 16.56     ~ 7 0
14 NGC 7078 267 * 21 30.0 +12 10   16.73 16.7     ~ 2 0
15 Cl* NGC 7078 LRR N1 * 21 30.0 +12 10           ~ 2 0

    Equat.    Gal    SGal    Ecl

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2020.02.17-17:43:51

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