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Related papers: Galactic extinction laws: I. A global NIR analysis…

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The nature of Galactic interstellar extinction is tested using reddening line parameters for several fields in conjunction with equivalent widths $W(\lambda4430)$ for the diffuse interstellar band at $4430$ \AA. The Cardelli et…

Astrophysics of Galaxies · Physics 2015-06-22 David G. Turner , Daniel J. Majaess , David D. Balam

We present a method to simultaneously infer the interstellar extinction parameters $A_0$ and $R_0$, stellar effective temperature $T_{\rm eff}$, and distance modulus $\mu$ in a Bayesian framework. Using multi-band photometry from SDSS and…

Astrophysics of Galaxies · Physics 2015-06-18 R. J. Hanson , C. A. L. Bailer-Jones

In order to study the properties and effects of high Galactic latitude dust we present an analysis of 373,303 galaxies selected from the Galaxy Evolution Explorer (GALEX) All-Sky Survey and Wide-Field Infrared Explorer (WISE) All-Sky Data…

Astrophysics of Galaxies · Physics 2015-06-15 J. E. G. Peek , David Schiminovich

Photometry of the Galactic bulge, collected during the OGLE-II microlensing search, indicates high and non-uniform interstellar extinction toward the observed fields. We use the mean I-band magnitude and V-I color of red clump stars as a…

Astrophysics · Physics 2008-11-26 A. Udalski

We have determined the wavelength dependence of the extinction in the near-infrared bands ($J$, $H$, $K_{\mathrm S}$) toward the Galactic center from the VVV (VISTA Variables in the V\'ia L\'actea) aperture photometry of the stars in the…

Astrophysics of Galaxies · Physics 2019-09-25 Schun Nagatomo , Tetsuya Nagata , Shogo Nishiyama

We present the reddening (E(V-I)) and Extinction maps in V-band (A_V) and I-band (A_I) for 48 Optical Gravitational Lensing Experiment II (OGLE-II) Galactic bulge (GB) fields, covering a range of $-11^\circ <l< 11^\circ$, with the total…

Astrophysics · Physics 2009-11-10 Takahiro Sumi

We are studying the column density distribution of all nearby giant molecular clouds. As part of this project we generated several all sky extinction maps. They are calculated using the median near infrared colour excess technique applied…

Astrophysics of Galaxies · Physics 2009-11-13 J. Rowles , D. Froebrich

While the shape of the extinction curve on the infrared is considered to be set and the extinction ratios between infrared bands are usually taken to be approximately constant, a recent number of studies point either to a spatially variable…

A precise extinction law is a critical input when interpreting observations of highly reddened sources such as young star clusters and the Galactic Center (GC). We use Hubble Space Telescope observations of a region of moderate extinction…

Astrophysics of Galaxies · Physics 2018-03-14 M. W. Hosek , J. R. Lu , J. Anderson , T. Do , E. F. Schlafly , A. M. Ghez , W. I. Clarkson , M. R. Morris , S. M. Albers

The slopes of interstellar reddening lines in the 2MASS J-H versus H-Ks diagrams for 26 areas in the inner Galaxy (from Vulpecula to Centaurus) are determined. For this aim we use the red-clump giants located inside and behind spiral arms,…

Astrophysics of Galaxies · Physics 2009-02-09 V. Straizys , V. Laugalys

We combine VI photometry from OGLE-III with VVV and 2MASS measurements of E(J-K_{s}) to resolve the longstanding problem of the non-standard optical extinction toward the Galactic bulge. We show that the extinction is well-fit by the…

The most widely used Galactic extinction map (Schlegel, Finkbeiner, & Davis 1998, SFD) is constructed assuming that the observed FIR fluxes entirely come from the Galactic dust. According to the earlier suggestion by Yahata et al. (2007),…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-23 Toshiya Kashiwagi , Yasushi Suto , Atsushi Taruya , Issha Kayo , Takahiro Nishimichi , Kazuhiro Yahata

We present an extinction map of the Large Magellanic Cloud (LMC), using 204,502 stars from the Two Micron All Sky Survey point source catalog. We first use the NICE method to determine the reddening distribution, \ehk and \ejh, which we…

Astrophysics · Physics 2011-02-11 Nia Imara , Leo Blitz

We present an analysis of 436 lines of sight with extinction data covering wavelength range from near-infrared (NIR) to ultraviolet (UV). We use J, H, K photometry from 2MASS database, the IR intrinsic colors from Wegner (1994), and UV…

Astrophysics · Physics 2007-05-23 Anna Geminale , Piotr Popowski

Interstellar dust extinction curves provide valuable information about dust properties, including the composition and size of the dust grains, and are essential to correct observations for the effects of interstellar dust. In this work, we…

We explore variations of the dust extinction law of the Milky Way by selecting stars from the Swift/UVOT Serendipitous Source Catalogue, cross-matched with Gaia DR2 and 2MASS to produce a sample of 10,452 stars out to ~4kpc with photometry…

Astrophysics of Galaxies · Physics 2021-05-12 I. Ferreras , M. Tress , G. Bruzual , S. Charlot , M. Page , V. Yershov , P. Kuin , D. Kawata , M. Cropper

We propose a new method to investigate the coefficient of the selective extinction, based on two band photometry. This method uses red clump stars as a means to construct the reddening curve. We apply this method to the OGLE color-magnitude…

Astrophysics · Physics 2009-10-28 P. R. Wozniak , K. Z. Stanek

As part of a reanalysis of galactic Asymptotic Giant Branch (AGB) stars at infrared (IR) wavelengths, we discuss a sample (357) of carbon stars for which mass loss rates, near-IR photometry and distance estimates exist. For 252 sources we…

Astrophysics · Physics 2016-08-30 R. Guandalini , M. Busso , S. Ciprini , G. Silvestro , P. Persi

We quantify the effects of Galactic extinction on the derived luminosity and diameter functions and on the density field of a redshift sample. Galaxy magnitudes are more affected by extinction than are diameters, although the effect on the…