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We present a multiwavelength analysis of the supernova remnant N49 in the Large Magellanic Cloud. Using high-resolution Hubble Space Telescope WFPC2 images of H-alpha, [S II] and [O III] emission, we study the morphology of the remnant and…

Astrophysics · Physics 2009-06-23 J. Bilikova , R. N. M. Williams , Y. -H. Chu , R. A. Gruendl , B. F. Lundgren

CF$^{+}$ has been established as a valuable diagnostic tool for investigating photo-dissociation regions (PDRs) and fluorine abundances in the Milky Way. However, its role in extragalactic environments remains largely uncharted. Our…

Astrophysics of Galaxies · Physics 2024-06-26 Yan Gong , Karl M. Menten , Arshia M. Jacob , Christian Henkel , C. -H. Rosie Chen

The Coma supercluster (100 Mpc) offers an unprecedented contiguous range of environments in the nearby Universe. In this paper we present a catalogue of spectroscopically confirmed galaxies in the Coma supercluster detected in the…

Astrophysics of Galaxies · Physics 2018-06-06 Smriti Mahajan , Ankit Singh , Devika Shobhana

[13CII] observations in several Galactic sources show that the fine-structure [12CII] emission is often optically thick (the optical depths around 1 to a few). The aim of our study is to test whether this also affects the [12CII] emission…

Astrophysics of Galaxies · Physics 2019-11-20 Yoko Okada , Ronan Higgins , Volker Ossenkopf-Okada , Cristian Guevara , Jürgen Stutzki , Marc Mertens

We present far-ultraviolet (far-UV) images of the rich galaxy cluster ZwCl1358.1+6245, taken with the Space Telescope Imaging Spectrograph on board the Hubble Space Telescope (HST). When combined with archival HST observations, our data…

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…

The Small Magellanic Cloud (SMC) is the second-largest satellite galaxy of the Milky Way and is only 60 kpc away. As a nearby, massive, and dense object with relatively low astrophysical backgrounds, it is a natural target for dark matter…

Mid-infrared spectra from the Medium Resolution Spectrometer on the James Webb Space Telescope have revealed the molecular chemistry of carbon stars in the Large Magellanic Cloud with better resolution and sensitivity than previously…

HD molecule is one the most abundant molecule in the Universe and due to its sensibility to the conditions in the medium, it can be used to constrain physical parameters in the medium where HD resides. Lately we have shown that HD abundance…

Astrophysics of Galaxies · Physics 2023-09-06 D. N. Kosenko , S. A. Balashev

In the spectra of 139 early-type Large Magellanic Cloud (LMC) stars observed with FUSE and with deep radio Parkes HI 21-cm observations along those stars, we search for and analyze the absorption and emission from high-velocity gas at…

Astrophysics of Galaxies · Physics 2009-08-24 N. Lehner , L. Staveley-Smith , J. C. Howk

The VISTA near infrared Y, J, Ks survey of the Magellanic System (VMC) is collecting deep Ks band time series photometry of pulsating variable stars hosted by the two Magellanic Clouds and their connecting Bridge. In this paper, we present…

From H\alpha narrow band observations, we identified three H\alpha emitting regions in the direction of Magellanic Stream IV (MS IV). They consist of three parallel filaments with 2 arcmin width and 6 -- 30 arcmin length at 12 arcmin…

Astrophysics of Galaxies · Physics 2012-03-27 Masafumi Yagi , Yutaka Komiyama , Michitoshi Yoshida

We estimate the abundances of S and Fe in the high velocity cloud HVC 287.5+22.5+240, which has a velocity of +240 km/s with respect to the local standard of rest and is in the Galactic direction l~287, b~23. The measurements are based on…

Context: Supernova 1987A (SN1987A) exploded in the Large Magellanic Cloud (LMC). Its proximity and rapid evolution makes it a unique case study of the early phases in the development of a supernova remnant. One particular aspect of interest…

Solar and Stellar Astrophysics · Physics 2015-05-28 Masha Lakicevic , Jacco Th. van Loon , Ferdinando Patat , Lister Staveley-Smith , Giovanna Zanardo

Photometry of the nebulae LDN1780, LDN1642 and LBN406 is used to derive scattering properties of dust and to investigate the presence of UV fluorescence emission by molecular hydrogen and the extended red emission (ERE). We used…

Astrophysics of Galaxies · Physics 2018-09-12 K. Mattila , M. Haas , L. K. Haikala , Y-S. Jo , K. Lehtinen , Ch. Leinert , P. Vaeisaenen

A recent data analysis of the far-infrared (FIR) map of the Galaxy and the Magellanic Clouds has shown that there is a tight correlation between two FIR colours: the 60 um-100 um and 100 um-140 um colours. This FIR colour relation called…

Astrophysics · Physics 2008-11-26 Hiroyuki Hirashita , Yasunori Hibi , Hiroshi Shibai

We present the analysis of supernova remnants (SNRs) in the Large Magellanic Cloud (LMC) and their influence on the environment at far-infrared (FIR) and submillimeter wavelengths. We use new observations obtained with the {\it Herschel}…

We report the analysis results of far ultraviolet (FUV) observations, made for a broad region around $\alpha$ Vir (Spica) including the interaction zone of Loop I and the Local Bubble. The whole region was optically thin and a general…

Astrophysics of Galaxies · Physics 2015-06-16 Yeon-Ju Choi , Kyoung-Wook Min , Kwang-Il Seon , Tae-Ho Lim , Young-Soo Jo , Jae-Woo Park

The Magellanic Clouds offer a unique variety of star forming regions seen as bright nebulae of ionized gas, related to bright young stellar associations. Nowadays, observations with the high resolving efficiency of the Hubble Space…

Astrophysics · Physics 2009-11-13 Dimitrios A. Gouliermis

We have observed intense diffuse radiation in the UV (1400 A - 2600 A) from three fields around M42 in Orion. Intensities of 20000 photons cm-2 s-1 sr-1 A-1 were observed to the east and west of M42 with 8000 photons cm-2 s-1 sr-1 A-1 south…

Astrophysics · Physics 2007-05-23 Jayant Murthy , R. C. Henry , L. J. Paxton , S. D. Price