2001A&A...379.1017L


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.28CET06:48:10

2001A&A...379.1017L - Astronomy and Astrophysics, volume 379, 1017-1023 (2001/12-1)

Can stellar winds account for temperature fluctuations in HII regions? The case of NGC 2363.

LURIDIANA V., CERVINO M. and BINETTE L.

Abstract (from CDS):

We compare the rate of kinetic energy injected by stellar winds into the extragalactic H II region NGC 2363 to the luminosity needed to feed the observed temperature fluctuations. The kinetic luminosity associated to the winds is estimated by means of two different evolutionary synthesis codes, one of which takes into account the statistical fluctuations expected in the Initial Mass Function. We find that, even in the most favorable conditions considered by our model, such luminosity is much smaller than the luminosity needed to account for the observed temperature fluctuations. The assumptions underlying our study are emphasized as possible sources of uncertainty affecting our results.

Abstract Copyright:

Journal keyword(s): H II regions - ISM: individual (NGC 2366, NGC 2363) - stars: clusters

Simbad objects: 4

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Number of rows : 4

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 NGC 2363 G 07 28 29.83 +69 11 32.8   15.5       ~ 251 1
2 NGC 2363A HII 07 28 42.8 +69 11 21           ~ 542 3
3 NGC 2366 H2G 07 28 51.85 +69 12 31.1 12.25 11.86 11.39 11.33   ~ 709 0
4 Mrk 116 PaG 09 34 02.1 +55 14 25           ~ 1004 1

    Equat.    Gal    SGal    Ecl

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2020.10.28-06:48:10

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