TY  - JOUR
A1  - Naze, Yael
A1  - Wang, Q. Daniel
A1  - Chu, You-Hua
A1  - Gruendl, Robert
A1  - Oskinova, Lida
T1  - A deep chandra observation of the giant HII region N11. I. x-ray sorces  in the field
JF  - The astrophysical journal : an international review of spectroscopy and astronomical physics ; Supplement series
N2  - A very sensitive X-ray investigation of the giant HII region N11 in the Large Megallanic Cloud was performed using the Chandra X-ray Observatory. The 300 ks observation reveals X-ray sources with luminosities down to 10(32) erg s(-1), increasing the number of known point sources in the field by more than a factor of five. Among these detections are 13 massive stars (3 compact groups of massive stars, 9 O stars, and one early B star) with log(L-X/L-BOL) similar to -6.5 to -7, which may suggest that they are highly magnetic or colliding-wind systems. On the other hand, the stacked signal for regions corresponding to undetected O stars yields log(L-X/L-BOL) similar to -7.3, i.e., an emission level comparable to similar Galactic stars despite the lower metallicity. Other point sources coincide with 11 foreground stars, 6 late-B/A stars in N11, and many background objects. This observation also uncovers the extent and detailed spatial properties of the soft, diffuse emission regions, but the presence of some hotter plasma in their spectra suggests contamination by the unresolved stellar population.
KW  - galaxies: star clusters: general
KW  - ISM: individual objects (LMC N11)
KW  - Magellanic Clouds
KW  - X-rays: stars
Y1  - 2014
U6  - https://doi.org/10.1088/0067-0049/213/2/23
SN  - 0067-0049
SN  - 1538-4365
VL  - 213
IS  - 2
PB  - IOP Publ. Ltd.
CY  - Bristol
ER  -