English
Related papers

Related papers: A Bayesian Method for the Extinction

200 papers

Aims: We used 12,530 photometrically-selected blue horizontal branch (BHB) stars from the Sloan Digital Sky Survey (SDSS) to estimate the total extinction of the Milky Way at the high Galactic latitudes, $R_V$ and $A_V$ in each line of…

Astrophysics of Galaxies · Physics 2015-06-17 Hai-Jun Tian , Chao Liu , Jing-Yao Hu , Yang Xu , Xue-Lei Chen

Astrometric surveys provide the opportunity to measure the absolute magnitudes of large numbers of stars, but only if the individual line-of-sight extinctions are known. Unfortunately, extinction is highly degenerate with stellar effective…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 C. A. L. Bailer-Jones

A new method for the determination of the extinction in our Galaxy is proposed. The method uses surface brightnesses of external galaxies in the B and R bands. The observational data have been taken from the ESO-LV galaxy catalogue. As a…

Astrophysics · Physics 2007-05-23 Jacek Choloniewski , Edwin. A. Valentijn

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

The Galaxy and the stars in it form a hierarchical system, such that the properties of individual stars are influenced by those of the Galaxy. Here, an approach is described which uses hierarchical Bayesian models to simultaneously and…

Astrophysics of Galaxies · Physics 2015-06-11 S. E. Sale

The relative extinction in the Galaxy computed with our new method (Choloniewski and Valentijn 2003, CV) is compared with three patterns: Schlegel, Finkbeiner and Davis (1998, SFD), Burstein and Heiles (1978, BH) and the cosecans law. It is…

Astrophysics · Physics 2007-05-23 Jacek Choloniewski , Edwin A. Valentijn

We determine the local galactic extinction towards the field of gamma-ray burst GRB970228 using a variety of methods. We develop a maximum likelihood method for measuring the extinction by comparing galaxy counts in the field of interest to…

Astrophysics · Physics 2009-10-30 F. J. Castander , D. Q. Lamb

We study the integral Galactic extinction and reddening based on the galaxy catalog of the South Galactic Cap U-band Sky Survey (SCUSS), where $u$ band galaxy number counts and $u-r$ color distribution are used to derive the Galactic…

We develop the ``simulated extinction method'' to measure average foreground Galactic extinction from field galaxy number-counts and colors. The method comprises simulating extinction in suitable reference fields by changing the isophotal…

Astrophysics · Physics 2009-10-30 Rosa A. Gonzalez , Andrew S. Fruchter , Boris Dirsch

A detailed map of the distribution of dust at high Galactic latitudes is essential for future cosmic microwave background (CMB) polarization experiments because the dust, while diffuse, remains a significant foreground in these regions. We…

Astrophysics of Galaxies · Physics 2024-10-16 Matthew O'Callaghan , Gerry Gilmore , Kaisey S. Mandel

The aims of this work are to provide accurate photometry in multiple near-infrared broadband filters, to determine the power-law index of the extinction-law toward the central parsec of the Galaxy, to provide measurements of the absolute…

Astrophysics of Galaxies · Physics 2009-12-08 R. Schoedel , F. Najarro , K. Muzic , A. Eckart

Galactic extinction is tested using galaxy number counts at low Galactic latitude obtained from five band photometry of the Sloan Digital Sky Survey. The spatial variation of galaxy number counts for low extinction regions of $E(B-V) <…

Astrophysics · Physics 2008-11-26 Naoki Yasuda , Masataka Fukugita , Donald P. Schneider

Using a Bayesian technology we derived distances and extinctions for over 100,000 red giant stars observed by the Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey by taking into account spectroscopic constraints from…

Astrophysics of Galaxies · Physics 2016-06-22 Jianling Wang , Jianrong Shi , Kaike Pan , Bingqiu Chen , Yongheng Zhao , James Wicker

We test the recently published all-sky reddening map of Schlegel, Finkbeiner & Davis (1998 [SFD]) using the extinction study of a region in the Taurus dark cloud complex by Arce & Goodman (1999 [AG]). In their study, AG use four different…

Astrophysics · Physics 2009-08-21 Hector G. Arce , Alyssa A. Goodman

A large-scale three-dimensional model of Galactic extinction is presented based on the Galactic dust distribution model of Drimmel and Spergel (2001). The extinction A_V to any point within the Galactic disk can be quickly deduced using a…

Astrophysics · Physics 2009-11-10 R. Drimmel , A. Cabrera-Lavers , M. Lopez-Corredoira

We determine the interstellar extinction in the selected high-latitude areas of the sky based on Gaia EDR3 astrometry and photometry and spectroscopic data from RAVE survey. We approximate the results with the cosecant law in each area thus…

Astrophysics of Galaxies · Physics 2021-11-01 Aleksandra Avdeeva , Dana Kovaleva , Oleg Malkov , Alexey Nekrasov

We report results concerning the distribution and properties of galactic extinction at high galactic latitudes derived from stellar statistics using the Sloan Digital Sky Survey (SDSS). We use the classical Wolf diagram method to identify…

Astrophysics of Galaxies · Physics 2015-05-14 Evgeny Gorbikov , Noah Brosch

We present a three dimensional map of extinction in the Northern Galactic Plane derived using photometry from the IPHAS survey. The map has fine angular ($\sim 10$ arcmin) and distance (100 pc) sampling allied to a significant depth…

We present a three dimensional extinction map in $r$ band. The map has a spatial angular resolution, depending on latitude, between 3 -- 9\,arcmin and covers the entire XSTPS-GAC survey area of over 6,000\,$\rm deg^2$ for Galactic longitude…

Solar and Stellar Astrophysics · Physics 2015-06-22 B. -Q Chen , X. -W. Liu , H. -B. Yuan , H. -H. Zhang , M. Schultheis , B. -W. Jiang , Y. Huang , M. -S. Xiang , H. -B. Zhao , J. -S. Yao , H. Lu
‹ Prev 1 2 3 10 Next ›