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Related papers: The extinction law inside the 30 Doradus nebula

200 papers

Intrigued by the extended red-giant clump (RC) stretching across the colour-magnitude diagram of the stars in a 50x50 pc^2 region of the Large Magellanic Cloud (LMC) containing the clusters NGC 1938 and NGC 1939, we have studied the stellar…

Astrophysics of Galaxies · Physics 2020-08-26 Guido De Marchi , Nino Panagia , Antonino P. Milone

Based on the data obtained from the Spitzer/GLIPMSE Legacy Program and the 2MASS project, we derive the extinction in the four IRAC bands, [3.6], [4.5], [5.8] and [8.0] micron, relative to the 2MASS Ks band (at 2.16 micron) for 131 GLIPMSE…

Astrophysics of Galaxies · Physics 2014-11-20 Jian Gao , B. W. Jiang , A. Li

Fundamental properties of the extinction curve, like the slope in the rest-frame UV and the presence/absence of a broad absorption excess centred at 2175A (the UV bump), are investigated for a sample of 108 massive, star-forming galaxies at…

Astrophysics · Physics 2007-05-23 Stefan Noll , Daniele Pierini , Maurilio Pannella , Sandra Savaglio

Employing the Maximum Entropy Method algorithm, we fit interstellar extinction measurements which span the wavelength range 0.125-3 micron. We present a uniform set of MEM model fits, all using the same grain materials, optical constants…

We have applied the method of star counts with Wolf diagrams to determine the interstellar extinction in five Galactic cirri in Sloan Digital Sky Survey (SDSS) Stripe 82. For this purpose, we have used the photometry of stars in the GALEX…

Interstellar absorption in the galactic plane is highly variable from one direction to another. In this paper colour excesses and distances from a new open cluster sample are used to investigate the spatial distribution of the interstellar…

Astrophysics · Physics 2007-05-23 Bing Chen , Jean Luc Vergely , Bernard Valette , Giovanni Carraro

We have started an ambitious program to determine if the full diversity of extinction laws is real or if some of it is due to calibration or methodological issues. Here we start by analyzing the information on NIR extinction in a 2MASS…

Astrophysics of Galaxies · Physics 2020-07-01 J. Maíz Apellániz , M. Pantaleoni González , R. H. Barbá , P. García-Lario , F. Nogueras-Lara

We determine the extinction curve from the UV to the near-IR for molecular clouds and investigate whether current models can adequately explain this wavelength dependence of the extinction. The aim is also to interpret the extinction in…

Astrophysics of Galaxies · Physics 2015-06-03 Sven Olofsson , Göran Olofsson

We present values for angular diameter, flux and extinction for 70 Galactic planetary nebulae observed using narrow band filters. Angular diameters are derived using constant emissivity shell and photoionization line emission models. The…

Astrophysics · Physics 2009-11-10 P. M. E. Ruffle , A. A. Zijlstra , J. R. Walsh , M. D. Gray , K. Gesicki , D. Minniti , F. Comeron , .

We present a new set of high resolution dust extinction maps of the nearby and essentially starless Pipe Nebula molecular cloud. The maps were constructed from a concerted deep near-infrared imaging survey with the ESO-VLT, ESO-NTT, CAHA…

Astrophysics of Galaxies · Physics 2010-12-23 Carlos Gerardo Román-Zúñiga , João F. Alves , Charles J. Lada , Marco Lombardi

I review the basic properties of interstellar extinction in the Milky Way galaxy, focusing primarily on the wavelength dependence within the IR through UV spectral region. My primary goal is to review the evidence supporting the idea that…

Astrophysics · Physics 2007-05-23 Edward L. Fitzpatrick

A new analytical 3D model of interstellar extinction within 500 pc of the Sun as a function of the Galactic spherical coordinates is suggested. This model is physically more justified than the widely used Arenou model, since it takes into…

Solar and Stellar Astrophysics · Physics 2017-06-13 George Gontcharov

Interstellar dust plays a central role in shaping the detailed structure of the interstellar medium, thus strongly influencing star formation and galaxy evolution. Dust extinction provides one of the main pillars of our understanding of…

It is well known that the extinction properties along lines of sight to Type Ia supernovae are described by steep extinction curves with unusually low total-to-selective extinction ratios of Rv = 1.0-2.0. In order to reveal the properties…

Astrophysics of Galaxies · Physics 2016-12-07 Takaya Nozawa

The extinction laws at 7um and 15um are derived for more than 120 sightlines in the inner Galactic plane based on the ISOGAL survey data and the near-infrared data from DENIS and 2MASS. The tracers are the ISOGAL point sources with…

Astrophysics · Physics 2009-11-11 B. W. Jiang , J. Gao , A. Omont , F. Schuller , G. Simon

Context. Observations of quasars shining through foreground galaxies, offer a way to probe the dust extinction curves of distant galaxies. Interesting objects for this study are found in strong gravitational lensing systems, where the…

Astrophysics · Physics 2009-11-13 Linda Ostman , Ariel Goobar , Edvard Mortsell

This review describes our current understanding of interstellar extinction. This differ substantially from the ideas of the 20th century. With infrared surveys of hundreds of millions of stars over the entire sky, such as 2MASS,…

Astrophysics of Galaxies · Physics 2017-06-13 George Gontcharov

The effective extinction law for supernovae surrounded by circumstellar dust is examined by Monte-Carlo simulations. Grains with light scattering properties as for interstellar dust in the Milky-Way (MW) or the Large Magellanic Clouds…

Astrophysics · Physics 2014-11-18 Ariel Goobar

The purpose of the investigation is to probe the dust properties inside a molecular cloud, how particle grow and how the presence of ice coatings may change the overall shape of the extinction curve. Field stars can be used to probe the…

Astrophysics of Galaxies · Physics 2015-06-03 Sven Olofsson , Göran Olofsson

We present an extinction map of the inner $\sim$\SI{15}{\arcminute} by {16}{\arcminute} of the Galactic Center (GC) with map `pixels' measuring \SI{5}{\arcsecond} $\times$ \SI{5}{\arcsecond} using integrated light color measurements in the…

Astrophysics of Galaxies · Physics 2020-04-06 R. Deno Stelter , Stephen S. Eikenberry
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