<i>AKARI</i>INFRARED CAMERA SURVEY OF THE LARGE MAGELLANIC CLOUD. I. POINT-SOURCE CATALOG

Kato, Daisuke; Ita, Yoshifusa; Onaka, Takashi; Tanabé, Toshihiko; Shimonishi, Takashi; Sakon, Itsuki; Kaneda, Hidehiro; Kawamura, Akiko; Wada, Takehiko; Usui, Fumihiko; Koo, B. C.; Matsuura, M.; Takahashi, H.

doi:10.1088/0004-6256/144/6/179

Cited by 39 publications

(32 citation statements)

References 39 publications

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“…The stellar mass of ST11 is estimated using the Online SED Fitter 8 (Robitaille et al 2007). As the input data of the SED fit, we use 2-840 μm photometric and spectroscopic data, which are obtained from the IRSF/SIRIUS, Spitzer SAGE, AKARI LSLMC, and Herschel HERITAGE databases (Meixner et al 2006(Meixner et al , 2013Kato et al 2007Kato et al , 2012Kemper et al 2010;Shimonishi et al 2010). We also use the results of our midinfrared narrow-band filter photometry (centered at 7.…”

Section: Luminosity and Stellar Massmentioning

confidence: 99%

The Detection of a Hot Molecular Core in the Large Magellanic Cloud With Alma

Shimonishi

Onaka

Kawamura

et al. 2016

ApJ

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We report the first detection of a hot molecular core outside our Galaxy based on radio observations with ALMA toward a high-mass young stellar object (YSO) in a nearby low metallicity galaxy, the Large Magellanic Cloud (LMC). are detected from a compact region (∼0.1 pc) associated with a high-mass YSO, ST11. The temperature of molecular gas is estimated to be higher than 100 K based on rotation diagram analysis of SO 2 and 34 SO 2 lines. The compact source size, warm gas temperature, high density, and rich molecular lines around a high-mass protostar suggest that ST11 is associated with a hot molecular core. We find that the molecular abundances of the LMC hot core are significantly different from those of Galactic hot cores. The abundances of CH 3 OH, H 2 CO, and HNCO are remarkably lower compared to Galactic hot cores by at least 1-3 orders of magnitude. We suggest that these abundances are characterized by the deficiency of molecules whose formation requires the hydrogenation of CO on grain surfaces. In contrast, NO shows a high abundance in ST11 despite the notably low abundance of nitrogen in the LMC. A multitude of SO 2 and its isotopologue line detections in ST11 imply that SO 2 can be a key molecular tracer of hot core chemistry in metal-poor environments. Furthermore, we find molecular outflows around the hot core, which is the second detection of an extragalactic protostellar outflow. In this paper, we discuss the physical and chemical characteristics of a hot molecular core in the low metallicity environment.

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Section: Luminosity and Stellar Massmentioning

confidence: 99%

The Detection of a Hot Molecular Core in the Large Magellanic Cloud With Alma

Shimonishi

Onaka

Kawamura

et al. 2016

ApJ

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“…1). Detailed properties of the survey are summarized in Table 1 of Shimonishi et al (2013) for the spectroscopic survey and Table 1 of Kato et al (2012) for the imaging survey. The present survey plays a complementary role to other infrared surveys such as SAGE or HERITAGE (Meixner et al, 2006(Meixner et al, , 2013.…”

Section: The Akari /Irc Lmc Surveymentioning

confidence: 99%

“…The spectroscopic catalogue includes 1,757 sources (Shimonishi et al, 2013). The photometric catalogue includes about 650,000, 90,000, 49,000, 17,000, 7,000 sources at 3.2, 7, 11, 15, and 24 µm, respectively (Kato et al, 2012). Both catalogs are publicly released and available through the website "AKARI Observers Page 1 ".…”

Section: The Akari /Irc Lmc Surveymentioning

confidence: 99%

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Akari Infrared Camera Survey of the Large Magellanic Cloud

2017

Publications of The Korean Astronomical Society

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We conducted an unbiased near-to mid-infrared imaging and spectroscopic survey of the Large Magellanic Cloud (LMC) as a part of the AKARI Mission Program "Large-area Survey of the LMC" (LSLMC, PI: T. Onaka). An area of about 10 square degrees of the LMC was observed by five photometric bands (3.2, 7, 11, 15, and 24 µm) and a low-resolution slitless prism (2 -5 µm, R ∼20) equipped with AKARI /IRC. We constructed and publicly released photometric and spectroscopic catalogues of point sources in the LMC based on the survey data. The catalogues provide a large number of near-infrared spectral data, coupled with complementary broadband photometric data. Combined use of the present AKARI LSLMC catalogues with other infrared point source catalogues of the LMC possesses scientific potential that can be applied to various astronomical studies.

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“…Details of data reduction are given in Kato et al, 2012), and here we briefly summarize the reduction and calibration procedures.…”

Section: Data Reductionmentioning

confidence: 99%

Akari Irc Survey of the Large Magellanic Cloud: An Overview of the Survey and a Brief Description of the Point Source Catalog

Ita

Kato²,

Onaka³

et al. 2012

Publications of The Korean Astronomical Society

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We observed an area of 10 deg 2 of the Large Magellanic Cloud using the Infrared Camera (IRC) onboard AKARI. The observations were carried out using five imaging filters (3, 7, 11, 15, and 24 µm) and the prism disperser (2 -5 µm, λ/∆λ ∼ 20) equipped in the IRC. This paper presents an outline of the survey project and also describes very briefly the newly compiled near-to midinfrared point source catalog. The 10 σ limiting magnitudes are 17.9, 13.8, 12.4, 9.9, and 8.6 mag at 3.2, 7, 11, 15 and 24 µm, respectively. The photometric accuracy is estimated to be about 0.1 mag at 3.2 µm and 0.06 -0.07 mag in the other bands. The position accuracy is 0.3 at 3.2, 7 and 11 µm and 1.0 at 15 and 24 µm. The sensitivities at 3.2, 7, and 24 µm are roughly comparable to those of the Spitzer SAGE LMC point source catalog, while the AKARI catalog provides the data at 11 and 15 µm, covering the near-to mid-infrared spectral range continuously.

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AKARIINFRARED CAMERA SURVEY OF THE LARGE MAGELLANIC CLOUD. I. POINT-SOURCE CATALOG

Cited by 39 publications

References 39 publications

The Detection of a Hot Molecular Core in the Large Magellanic Cloud With Alma

The Detection of a Hot Molecular Core in the Large Magellanic Cloud With Alma

Akari Infrared Camera Survey of the Large Magellanic Cloud

Akari Irc Survey of the Large Magellanic Cloud: An Overview of the Survey and a Brief Description of the Point Source Catalog

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