1997A&A...319..788R


C.D.S. - SIMBAD4 rel 1.7 - 2020.06.02CEST11:06:15

1997A&A...319..788R - Astronomy and Astrophysics, volume 319, 788-795 (1997/3-3)

Hα detection of a clump of distant HII regions in the Milky Way.

RUSSEIL D.

Abstract (from CDS):

A group of 8 HII regions has been detected at a distance of 10kpc from the Sun at galactic longitude 298°, using Hα wavelength observations. The observations were made with a scanning Fabry-Perot interferometer to provide a detailed Hα profile, which enables us to separate these distant HII regions from the 3 other layers of ionized gas seen along the line of sight. A comparison of 5GHz continuum and IRAS data allows us to analyse the nature of each source. Most of the distant HII regions were already known as radio sources or IRAS sources but one of them has no radio or IRAS counterpart. Inversely, IRAS sources without radio continuum nor an Hα counterpart have been detected. Closer to us, on the same line of sight, we detected diffuse Hα emission linking the Sagittarius arm with the Carina arm at a distance of about 2.5kpc, where no usual tracer of spiral structure had previously been found. The HII region RCW 64, also seen in this direction, seems to be located between the two main spiral arms.

Abstract Copyright:

Journal keyword(s): interstellar medium: HII regions - Galaxy: structure - infrared: ISM: continuum - radio continuum

Status at CDS:  

Simbad objects: 21

goto View the reference in ADS

Number of rows : 21

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 NAME Car Arm PoG 10 00 -60.0           ~ 378 1
2 BRAN 362C HII 11 28 52.9 -62 37 33           ~ 9 0
3 BRAN 362F HII 11 30 24.2 -63 49 02           ~ 13 0
4 IC 2944 HII 11 38 20.00 -63 22 22.0           ~ 151 0
5 GUM 42 HII 11 38 20.4 -63 22 22           ~ 34 1
6 GAL 295.14-00.63 HII 11 43 15.7 -62 27 53           ~ 3 0
7 [DB2002b] G295.75-0.34 DNe 11 49 01 -62 20.4           ~ 5 0
8 GAL 295.76-00.20 HII 11 49 19.3 -62 12 13           ~ 6 0
9 GAL 296.59-00.98 SN? 11 54 51.0 -63 08 54           ~ 15 0
10 GAL 297.51-00.77 HII 12 03 08.5 -63 07 34           ~ 9 0
11 GAL 297.66-00.98 HII 12 04 05.6 -63 21 46           ~ 9 1
12 ESO 95-1 HII 12 09 01.260 -63 15 59.63     16.00     ~ 91 2
13 GAL 298.19-00.78 HII 12 09 03.7 -63 15 46           ~ 10 0
14 IRAS 12073-6233 mul 12 10 00.4 -62 49 57           ~ 47 0
15 [GS70] 298.2-00.3 HII 12 10 01.886 -62 50 00.46           ~ 65 1
16 [KC97c] G298.6-00.1 HII 12 13 12.6 -62 39 39           ~ 12 0
17 GAL 298.87-00.43 HII 12 15 29.6 -63 01 13           ~ 8 0
18 GAL 299.02+00.15 HII 12 17 27.2 -62 27 54           ~ 5 0
19 BRAN 386E HII 12 19 53.5 -62 55 08           ~ 24 2
20 GAL 299.36-00.26 HII 12 20 00.6 -62 54 35           ~ 4 0
21 GRS G069.90 +01.50 HII 20 01.2 +33 10           ~ 10 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 1997A&A...319..788R and select 'bookmark this link' or equivalent in the popup menu


2020.06.02-11:06:15

© Université de Strasbourg/CNRS

    • Contact