J/A+A/381/941 HST photometry of stars in N160A (Heydari-Malayeri+, 2002)
Resolving the compact HII regions in N160A with HST.
Heydari-Malayeri M., Charmandaris V., Deharveng L., Meynadier F., Rosa M.R.,
Schaerer D., Zinnecker H.
<Astron. Astrophys. 381, 941 (2002)>
=2002A&A...381..941H 2002A&A...381..941H
ADC_Keywords: H II regions ; Photometry, uvby ; Magellanic Clouds
Keywords: stars: early-type - ISM: dust, extinction - H II regions -
ISM: individual objects: N160A - galaxies: Magellanic Clouds
Abstract:
Using high-resolution imaging with the Hubble Space Telescope, we study
the Large Magellanic Cloud 2 region N160A and uncover several striking
features of this complex massive star-forming site. The two compact
high excitation 2 blobs (HEBs) A1 and A2 are for the first time
resolved and their stellar content and morphology is revealed. A1,
being of higher excitation, is powered by a single massive star whose
strong wind has created a surrounding bubble. A2 harbors several
exciting stars enshrouded by large quantities of dust. The whole N160A
nebula is energized by three star clusters for which we obtain
photometry and study their color-magnitude diagram. The 2 region is
particularly dusty, with extinction values reaching an AV∼2.5mag in
the visible, and it is separated from the molecular cloud by an
outstanding ionization front. A previously detected infrared young
stellar object is also accurately located with respect to the 2
region (N160A).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 55 110 HST photometry of the brightest stars towards N160A
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- [HCD2002] Star sequential number
5 I1 h RAh Right ascension (J2000)
7- 8 I2 min RAm Right ascension (J2000)
10- 13 F4.1 s RAs Right ascension (J2000)
15 A1 --- DE- Declination sign (J2000)
16- 17 I2 deg DEd Declination (J2000)
19- 20 I2 arcmin DEm Declination (J2000)
22- 25 F4.1 arcsec DEs Declination (J2000)
27- 31 F5.2 mag Umag ? F300W (2911Å), wide U magnitude
33- 37 F5.2 mag vmag ? F410W (4090Å), Stroemgren v magnitude
39- 43 F5.2 mag bmag ? F467M (4669Å), Stroemgren b magnitude
45- 49 F5.2 mag ymag ? F547M (5479Å), Stroemgren y magnitude
51- 55 F5.2 mag b-y ? b-y colour index
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History:
From electronic version of the journal
* 23-Jan-2003: The data of [HCD2002] 46 and [HCD2002] 48 were corrected
(End) Patricia Bauer [CDS] 15-Mar-2002