| dc.creator | SERGIY SILICH | |
| dc.date | 2013-01-15 | |
| dc.date.accessioned | 2023-07-25T16:25:16Z | |
| dc.date.available | 2023-07-25T16:25:16Z | |
| dc.identifier | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/2256 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7807437 | |
| dc.description | We report the discovery of extended X-ray emission within the young star cluster NGC602a in the Wing of the Small Magellanic Cloud (SMC) based on observations obtained with the Chandra X-ray Observatory. X-ray emission is detected from the cluster core area with the highest stellar density and from a dusty ridge surrounding the HII region. We use a census of massive stars in the cluster to demonstrate that a cluster wind or wind-blown bubble is unlikely to provide a significant contribution to the X-ray emission detected from the central area of the cluster. We therefore suggest that X-ray emission at the cluster core originates from an ensemble of low- and solar-mass pre-main-sequence (PMS) stars, each of which would be too weak in X-rays to be detected individually. We attribute the X-ray emission from the dusty ridge to the embedded tight cluster of the new-born stars known in this area from infrared studies. Assuming that the levels of X-ray activity in young stars in the low-metallicity environment of NGC 602a are comparable to their Galactic counterparts, then the detected spatial distribution, spectral properties, and level of X-ray emission are largely consistent with those expected from low- and solar-mass PMS stars and young stellar objects (YSOs). This is the first discovery of X-ray emission attributable to PMS stars and YSOs in the SMC, which suggests that the accretion and dynamo processes in young, low-mass objects in the SMC resemble those in the Galaxy. | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | The Astrophysical Journal | |
| dc.relation | citation:Oskinova, L. M., et al., (2013). Discovery of x-ray emission from young suns in the small magellanic cloud, The Astrophysical Journal, Vol. 765(1):11-12 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0 | |
| dc.subject | info:eu-repo/classification/Inspec/Magellanic Clouds | |
| dc.subject | info:eu-repo/classification/Inspec/ISM: bubbles | |
| dc.subject | info:eu-repo/classification/Inspec/HII regions | |
| dc.subject | info:eu-repo/classification/Inspec/Stars: winds, outflows | |
| dc.subject | info:eu-repo/classification/Inspec/Stars: pre-main sequence | |
| dc.subject | info:eu-repo/classification/Inspec/X-rays: stars | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.subject | info:eu-repo/classification/cti/21 | |
| dc.subject | info:eu-repo/classification/cti/21 | |
| dc.title | Discovery of x-ray emission from young suns in the small magellanic cloud | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/acceptedVersion | |
| dc.audience | students | |
| dc.audience | researchers | |
| dc.audience | generalPublic | |
