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Related papers: Interstellar Abundances in the Magellanic Clouds

200 papers

A set of diffuse interstellar clouds in the inner Galaxy within a few hundred pc of the Galactic plane has been observed at an angular resolution of ~1 arcmin combining data from the NRAO Green Bank Telescope and the Very Large Array. At…

Astrophysics of Galaxies · Physics 2015-06-15 Yurii Pidopryhora , Felix J. Lockman , John M. Dickey , Michael P. Rupen

We used Spitzer's Infrared Spectrograph (IRS) to observe stars in the Small Magellanic Cloud (SMC) selected from the Midcourse Space Experiment (MSX) Point Source Catalog. We concentrate on the dust properties of oxygen-rich evolved stars,…

Solar and Stellar Astrophysics · Physics 2017-01-13 K. E. Kraemer , G. C. Sloan , P. R. Wood , O. C. Jones , M. P. Egan

The recent discovery that the UV dust extinction in starburst galaxies is similar to that found in the Small Magellanic Cloud (SMC) motivated us to re-investigate the ultraviolet (UV) extinction found in the SMC. We have been able to…

Astrophysics · Physics 2009-07-28 K. D. Gordon , G. C. Clayton

The Large and Small Magellanic Cloud (LMC and SMC) form the closest interacting galactic system to the Milky Way, therewith providing a laboratory to test cosmological models in the local Universe. We quantify the likelihood for the…

Astrophysics of Galaxies · Physics 2024-10-02 Moritz Haslbauer , Indranil Banik , Pavel Kroupa , Hongsheng Zhao , Elena Asencio

We present an atlas of 57 Large Magellanic Cloud (LMC) and 37 Small Magellanic Cloud (SMC) observations obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) satellite. The atlas highlights twelve interstellar absorption line…

We present a Spitzer Space Telescope spectroscopic survey of mass-losing carbon stars (and one oxygen-rich star) in the Large Magellanic Cloud. The spectra cover the wavelength range 5--38 micron. They show varying combinations of dust…

We present chemical abundances of carbon and oxygen in the Large and Small Magellanic Clouds from optical spectra of H II regions. We analyse the behaviour of the O/H, C/H and C/O abundances ratios and their spatial distribution inside the…

Astrophysics of Galaxies · Physics 2017-02-08 L. Toribio San Cipriano , C. Esteban , G. Domínguez-Guzmán , J. García-Rojas

We present a study on the central stars (CSs) of Planetary Nebulae (PNe) observed in the Small Magellanic Cloud (SMC) with the Space Telescope Imaging Spectrograph instrument on-board the HST. The stellar magnitudes have been measured using…

Astrophysics · Physics 2009-11-10 Eva Villaver , Letizia Stanghellini , Richard A. Shaw

We have observed a sample of 36 objects in the Small Magellanic Cloud (SMC) with the Infrared Spectrometer on the Spitzer Space Telescope. Nineteen of these sources are carbon stars. An examination of the near- and mid-infrared photometry…

Astrophysics · Physics 2014-10-13 G. C. Sloan , K. E. Kraemer , M. Matsuura , P. R. Wood , S. D. Price , M. P. Egan

The Magellanic Stream (MS) has long been known to contain multiple H I strands and corresponding stellar populations are beginning to be discovered. Combining a sample of 17 stars from the H3 ("Hectochelle in the Halo at High Resolution")…

Astrophysics of Galaxies · Physics 2025-02-19 Dennis Zaritsky , Vedant Chandra , Charlie Conroy , Ana Bonaca , Phillip A. Cargile , Rohan P. Naidu

The extent to which the ISM in galaxies is well mixed is not yet settled. Measured metal abundances in the diffuse neutral gas of star--forming gas--rich dwarf galaxies are deficient with respect to that of the ionized gas. The reasons, if…

Astrophysics · Physics 2015-11-11 Vianney Lebouteiller , Daniel Kunth

Studies of the relationship between planetary nebula morphology and the evolution of the central stars has long suffered from uncertainties in distance determinations, and from the bias of interstellar absorption, that are typical for…

Astrophysics · Physics 2007-05-23 L. Stanghellini , R. A. Shaw , J. C. Blades , B. Balick

We use very deep spectra obtained with the Ultraviolet-Visual Echelle Spectrograph in the Very Large Telescope in order to determine the physical conditions, the chemical abundances and the iron depletion factors of four H II regions of the…

Astrophysics of Galaxies · Physics 2017-01-11 G. Domínguez-Guzmán , M. Rodríguez , C. Esteban , J. García-Rojas

Spectral line survey observations of 7 molecular clouds in the Large Magellanic Cloud (LMC) have been conducted in the 3 mm band with the Mopra 22 m telescope to reveal chemical compositions in low metallicity conditions. Spectral lines of…

In this investigation, we present an analysis of the metallicity distribution that pertains to neutral gas in the local Galactic interstellar medium (ISM). We derive relative ISM metallicities for a sample of 84 sight lines probing diffuse…

Astrophysics of Galaxies · Physics 2023-07-25 Adam M. Ritchey , Edward B. Jenkins , J. Michael Shull , Blair D. Savage , S. R. Federman , David L. Lambert

Context. The presence of dust in the neutral interstellar medium (ISM) dramatically changes the metal abundances that we measure. Understanding the metal content in the neutral ISM, and a direct comparison between different environments,…

Astrophysics of Galaxies · Physics 2018-05-23 Annalisa De Cia

The Galaxy Evolution Exporer (GALEX) has performed unprecedented imaging surveys of the Magellanic Clouds (MC) and their surrounding areas including the Magellanic Bridge (MB) in near-UV (NUV, 1771-2831\AA) and far-UV (FUV, 1344-1786\AA)…

Astrophysics of Galaxies · Physics 2014-01-29 Raymond Simons , David Thilker , Luciana Bianchi , Ted Wyder

We present an analysis of high-resolution FLAMES spectra of approximately 50 early B-type stars in three young clusters at different metallicities, NGC6611 in the Galaxy, N11 in the Large Magellanic Cloud (LMC) and NGC346 in the Small…

Regions of different metallicity have been identified in the Magellanic Clouds by using the ratio between Asymptotic Giant Branch stars of spectral type C and M. In the Large Magellanic Cloud the ratio appears to decrease radially while in…

Astrophysics · Physics 2009-11-07 M. -R. L. Cioni , H. J. Habing

An overview is provided of the scientific goals of the Magellanic Cloud component of the STScI Directors Discretionary UV initiative ULLYSES, together with the complementary spectroscopic survey XShootU (VLT/Xshooter) and other ancillary…

Solar and Stellar Astrophysics · Physics 2022-07-19 Paul A Crowther