2010ApJS..191..160P


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.12CEST14:57:23

2010ApJS..191..160P - Astrophys. J., Suppl. Ser., 191, 160-178 (2010/November-0)

Structure and feedback in 30 Doradus. I. Observations.

PELLEGRINI E.W., BALDWIN J.A. and FERLAND G.J.

Abstract (from CDS):

We have completed a new optical imaging and spectrophotometric survey of a 140x80 pc2 region of 30 Doradus centered on R136, covering key optical diagnostic emission lines including Hα, Hβ, Hγ, [O III] λλ4363, 4959, 5007, [N II] λλ6548, 6584, [S II] λλ6717, 6731 [S III] λ6312, and in some locations [S III] λ9069. We present maps of fluxes and intensity ratios for these lines, and catalogs of isolated ionizing stars, elephant-trunk pillars, and edge-on ionization fronts. The final science-quality spectroscopic data products are available to the public. Our analysis of the new data finds that, while stellar winds and supernovae undoubtedly produce shocks and are responsible for shaping the nebula, there are no global spectral signatures to indicate that shocks are currently an important source of ionization. We conclude that the considerable region covered by our survey is well described by photoionization from the central cluster where the ionizing continuum is dominated by the most massive O stars. We show that if 30 Dor were viewed at a cosmological distance, its integrated light would be dominated by its extensive regions of lower surface brightness rather than by the bright, eye-catching arcs.

Abstract Copyright:

Journal keyword(s): H II regions - ISM: individual: 30 Doradus - ISM: structure - surveys - techniques: spectroscopic

VizieR on-line data: <Available at CDS (J/ApJS/191/160): table2.dat table4.dat>

CDS comments: CD 32 = CD -32 9927

Simbad objects: 17

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Number of rows : 17

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 M 33 GiG 01 33 50.904 +30 39 35.79 6.17 6.27 5.72     ~ 5135 1
2 NGC 604 HII 01 34 32.1 +30 47 01           ~ 544 0
3 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14832 1
4 M 42 HII 05 35 17.3 -05 23 28           ~ 3724 0
5 NAME Orion Bright Bar reg 05 35 22.30 -05 24 33.0           ~ 716 0
6 LH 99 As* 05 37.8 -69 10           ~ 47 0
7 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1039 2
8 NGC 2070 Cl* 05 38 42 -69 06.0     7.25     ~ 328 1
9 RMC 136 Cl* 05 38 42.396 -69 06 03.36           ~ 1736 1
10 L 595-22 PM* 05 56 24.7419816722 -27 51 32.362978169   12.31 12.38     sdG 142 0
11 HD 289002 * 06 45 13.3726265810 +02 08 14.688016523 10.06 10.62 10.44     B1 226 0
12 NGC 3603 OpC 11 15 18.6 -61 15 26           ~ 942 1
13 WG 22 WD* 12 38 49.7813250074 -49 48 00.218655097   14.14 13.96     DA4.2 204 0
14 CD-32 9927 * 14 11 46.3240134300 -33 03 14.379335532   10.793 10.444 10.12 10.106 A4 84 0
15 M 16 OpC 18 18 48 -13 48.4   6.58 6.0     ~ 935 2
16 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1484 0
17 NAME Local Group GrG ~ ~           ~ 6973 0

    Equat.    Gal    SGal    Ecl

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2020.07.12-14:57:23

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