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相关论文: Detection of Carbon Monoxide within the Magellanic…

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We present J=1-0 and J=2-1 12CO maps of several star-forming regions in both the Large and the Small Magellanic Cloud, and briefly discuss their structure. Many of the detected molecular clouds are relatively isolated and quite small with…

We report a detection of cold atomic hydrogen in the Magellanic Bridge using 21-cm absorption spectroscopy toward the radio source B0312-770. With a column density of N_HI=1.2E20 cm^-2, a maximum absorption optical depth of tau=0.10 and a…

天体物理学 · 物理学 2009-10-31 Henry A. Kobulnicky , John Dickey

We present here a preliminary report and commentary of recently processed observations of Ha emission towards the Magellanic Bridge. These data have been analysed in an attempt to quantify the extent to which the stellar population is…

天体物理学 · 物理学 2010-05-17 E. Muller , Q. Parker

We present here the first results from a high-resolution survey of the 12CO(J=1-0) emission across the northern part of the poorly-enriched Small Magellanic Cloud, made with the ATNF Mopra telescope. Three molecular complexes detected in…

星系天体物理 · 物理学 2015-05-18 E. Muller , J. Ott , A. Hughes , J. Pineda , T. Wong , N. Mizuno , A. Kawamura , Y. Mizuno , Y. Fukui , T. Onishi , M. Rubio

We present a new analysis of the diffuse gas in the Magellanic Bridge (RA>3h) based on HST/STIS E140M and FUSE spectra of 2 early-type stars lying within the Bridge and a QSO behind it. We derive the column densities of HI (from Ly\alpha),…

天体物理学 · 物理学 2009-11-13 N. Lehner , J. C. Howk , F. P. Keenan , J. V. Smoker

We present ultraviolet and optical spectra of DI 1388, a young star in the Magellanic Bridge, a region of gas between the Small and Large Magellanic Clouds. The data have signal-to-noise ratios of 20 to 45 and a spectral resolution of 6.5…

天体物理学 · 物理学 2009-11-06 N. Lehner , K. R. Sembach , P. L. Dufton , W. R. J. Rolleston , F. P. Keenan

We present the first detection of HCO$^+$ absorption in the Magellanic System. Using the Australia Telescope Compact Array (ATCA), we observed 9 extragalactic radio continuum sources behind the Magellanic System and detected HCO$^+$…

(Abridged)We characterize gas and dust emission in Magellanic Bridge A, which has the highest 870$\mu$m excess of emission found in single dish surveys. Using the ALMA telescope, we mapped the Magellanic Bridge A molecular cloud with…

星系天体物理 · 物理学 2020-09-16 M. T. Valdivia-Mena , M. Rubio , A. D. Bolatto , H. P. Saldaño , C. Verdugo

The 21cm line emission from a 7x6 degree region, east of and adjoining the Small Magellanic Cloud (SMC) has been observed with the Australia Telescope Compact Array and the Parkes telescopes. This region represents the westernmost part of…

天体物理学 · 物理学 2009-01-01 E. Muller , L. Staveley-Smith. , W. Zealey , S. Stanimirovic

Detections of CO, CS, SO, C2H, HCO+, HCN, HNC, H2CO, and C3H2 reported from LIRS 36, a star-forming region in the Small Magellanic Cloud. C18O, NO, CH3OH, and most notably CN have not been detected, while the rare isotopes 13CO and,…

天体物理学 · 物理学 2007-05-23 Y. -N. Chin , C. Henkel , T. J. Millar , J. B. Whiteoak , M. Marx-Zimmer

We report the first detection of [CI] (3P1-3P0) emission at 609 um in a region of the Small Magellanic Cloud (N27). Environments poor in heavy elements and dust such as the SMC are thought to be dominated by photodissociation regions. This…

天体物理学 · 物理学 2009-10-31 Alberto D. Bolatto , James M. Jackson , Kathleen E. Kraemer , Xiaolei Zhang

Observations with the Wisconsin H-alpha Mapper (WHAM) reveal a large, diffuse ionized halo that surrounds the Small Magellanic Cloud (SMC). We present the first kinematic H-alpha survey of an extended region around the galaxy, from (l,b) =…

星系天体物理 · 物理学 2020-01-08 Brianna M Smart , Lawrence M Haffner , Kat Barger , Alex Hill , Greg Madsen

Magellanic Bridge C (MB-C) is a metal-poor ($\sim$1/5 $Z_{\odot}$) low-density star-forming region located 59 kpc away in the Magellanic Bridge, offering a resolved view of the star formation process in conditions different to the Galaxy.…

星系天体物理 · 物理学 2020-10-07 V. M. Kalari , M. Rubio , H. P. Saldaño , A. D. Bolatto

The Magellanic System includes some of the nearest examples of galaxies disturbed by galaxy interactions. These interactions have redistributed much of their gas into the halos of the Milky Way and the Magellanic Clouds. We present…

星系天体物理 · 物理学 2013-07-09 K. A. Barger , L. M. Haffner , J. Bland-Hawthorn

We describe medium-resolution spectroscopic observations taken with the ESO Multi-Mode Instrument in the CaII K line (3933.661 Angstroms) towards 7 QSOs located in the line-of-sight to the Magellanic Bridge. At a spectral resolution R =…

天体物理学 · 物理学 2009-11-11 J. V. Smoker , F. P. Keenan , H. M. A. Thompson , C. Bruns , E. Muller , N. Lehner , J. -K. Lee , I. Hunter

The origin of the gas in between the Magellanic Clouds (MCs), known as the Magellanic Bridge (MB), has always been the subject of controversy. To shed light into this, we present the results from the MAGIC II project aimed at probing the…

星系天体物理 · 物理学 2015-07-23 Noelia E. D. Noel , Blair C. Conn , Justin I. Read , Ricardo Carrera , Andrew Dolphin , Hans-Walter Rix

Molecular hydrogen (H$_2$) is by far the most abundant molecule in the Universe. However, due to the low emissivity of H$_2$, carbon monoxide (CO) is widely used instead to trace molecular gas in galaxies. The relative abundances of these…

星系天体物理 · 物理学 2025-04-30 Sergei Balashev , Daria Kosenko , Pasquier Noterdaeme

We have carried out sub-mm 12CO(J=3-2) observations of 6 giant molecular clouds (GMCs) in the Large Magellanic Cloud (LMC) with the ASTE 10m sub-mm telescope at a spatial resolution of 5 pc and very high sensitivity. We have identified 32…

We aim to better understand the emission of molecular tracers of the diffuse and dense gas in giant molecular clouds and the influence that metallicity, optical extinction, density, far-UV field, and star formation rate have on these…

We report a new search for 12CO(1-0) emission in high-velocity clouds (HVCs) performed with the IRAM 30 m telescope. This search was motivated by the recent detection of cold dust emission in the HVCs of Complex C. Despite a spatial…

天体物理学 · 物理学 2009-11-13 M. Dessauges-Zavadsky , F. Combes , D. Pfenniger
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