2006MNRAS.368..253G


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.13CEST05:41:40

2006MNRAS.368..253G - Mon. Not. R. Astron. Soc., 368, 253-279 (2006/May-1)

Faint emission lines in the Galactic HII regions M 16, M 20 and NGC 3603.

GARCIA-ROJAS J., ESTEBAN C., PEIMBERT M., COSTADO M.T., RODRIGUEZ M., PEIMBERT A. and RUIZ M.T.

Abstract (from CDS):

We present deep echelle spectrophotometry of the Galactic Hii regions M16, M20 and NGC 3603. The data have been taken with the Very Large Telescope Ultraviolet-Visual Echelle Spectrograph in the 3100-10400 Å range. We have detected more than 200 emission lines in each region. Physical conditions have been derived using different continuum and line intensity ratios. We have derived He+, C++ and O++ abundances from pure recombination lines as well as collisionally excited lines (CELs) for a large number of ions of different elements. We have obtained consistent estimations of the temperature fluctuation parameter, t2, using different methods. We also report the detection of deuterium Balmer lines up to Dδ (M16) and to Dγ (M20) in the blue wings of the hydrogen lines, which excitation mechanism seems to be continuum fluorescence. The temperature fluctuation paradigm agrees with the results obtained from optical CELs, and the more uncertain ones from far-infrared fine-structure CELs in NGC 3603, although, more observations covering the same volume of the nebula are necessary to obtain solid conclusions.

Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

Journal keyword(s): ISM: abundances - Hii regions - ISM: individual: M16 - ISM: individual: M20 - ISM: individual: NGC 3603

VizieR on-line data: <Available at CDS (J/MNRAS/368/253): table2.dat>

Simbad objects: 16

goto Full paper

goto View the reference in ADS

Number of rows : 16

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 1763 As* 04 56 51.5 -66 24 25     9.40     ~ 158 3
2 BD+52 913 WD* 05 05 30.6182785658 +52 49 51.920797126 10.25 11.44 11.69 11.93 12.108 DA.8 1001 0
3 M 42 HII 05 35 17.3 -05 23 28           ~ 3787 0
4 NAME Ori A MoC 05 38 -07.1           ~ 2756 0
5 RMC 136 Cl* 05 38 42.396 -69 06 03.36           ~ 1785 1
6 HD 49798 HXB 06 48 04.7000758397 -44 18 58.432035331 6.758 8.017 8.287 8.391 8.543 sdO6 288 0
7 NGC 2467 HII 07 52 18 -26 25.7           ~ 176 1
8 NGC 3576 HII 11 11 49.8 -61 18 14           ~ 229 2
9 HD 306201 * 11 14 46.8825206736 -61 16 00.714916304   10.91 10.78     B9 5 0
10 NGC 3603 OpC 11 15 18.6 -61 15 26           ~ 975 1
11 CD-32 9927 * 14 11 46.3240134300 -33 03 14.379335532   10.793 10.444 10.12 10.106 A4 86 0
12 HD 164492 Y*O 18 02 23.5527458788 -23 01 51.000902120 6.49 7.49 6.80 7.52   O7.5Vz 215 0
13 M 20 OpC 18 02 42 -22 58.3           ~ 404 1
14 M 16 OpC 18 18 48 -13 48.4   6.58 6.0     ~ 959 2
15 2MASS J18185267-1349427 Y*O 18 18 52.6748769663 -13 49 42.635131189 9.04 9.71 9.45   8.968 O9.7IIIp 93 0
16 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1514 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2006MNRAS.368..253G and select 'bookmark this link' or equivalent in the popup menu


2021.04.13-05:41:40

© Université de Strasbourg/CNRS

    • Contact