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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Annual parallax determination toward a new x-ray-emitting class 0 candidate with the water maser in the NGC 2264 star-forming region
Astrophysical Journal, Supplement Series, Volume 211, No. 2, Article 18, Year 2014
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Description
In our multi-epoch observation of the star-forming region NGC 2264 with the VLBI Exploration of Radio Astrometry, we detected two water maser features. We have measured the annual parallax of the maser sources for the first time in NGC 2264 and derived 1.356± 0.098 mas, corresponding to the distance of 738+57?50 pc, which is consistent with its previously reported photometric observations. One of the maser features is located near a dust continuum core, CMM4S, positionally corresponding to the X-ray source FMS2-1269 listed in Flaccomio et al. Re-analyzing Chandra X-ray data, we found that FMS2-1269 is still surrounded by a dense envelope of a H2column density, 5.4 ×1023cm?2 We suggest that the maser detected near the CMM4S core is most likely associated with the X-ray-emitting Class 0 candidate FMS2-1269. The other maser feature is found to emerge from a high-velocity outflow of 150 km s?1 and is associated with the 3.6 cm radio continuum source NGC 2264 VLA 3 located close to IRS1. © 2014. The American Astronomical Society. All rights reserved. Printed in the U.S.A.
Authors & Co-Authors
Kamezaki, Tatsuya
Japan, Kagoshima
Kagoshima University
Omodaká, Toshihiro
Japan, Kagoshima
Kagoshima University
Handa, Toshihiro
Japan, Kagoshima
Kagoshima University
Nagayama, Takumi
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Hirota, Tomoya
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Sunada, Kazuyoshi
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Kobayashi, Hideyuki
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Chibueze, James O.
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Kawai, Eiji
Japan, Koganei
National Institute of Information and Communications Technology
Nakano, Makoto
Japan, Oita
Oita University
Statistics
Citations: 24
Authors: 10
Affiliations: 5
Identifiers
Doi:
10.1088/0067-0049/211/2/18
ISSN:
00670049
Research Areas
Environmental