English
Related papers

Related papers: Foreground Extinction to Extended Celestial Object…

200 papers

The Sun is located close to the Galactic mid-plane, meaning that we observe the Galaxy through significant quantities of dust. Moreover, the vast majority of the Galaxy's stars also lie in the disc, meaning that dust has an enormous impact…

Astrophysics of Galaxies · Physics 2024-01-24 Amery Gration , John Magorrian

We provide new, high-resolution A(Ks) extinction maps of the heavily reddened Galactic midplane based on the Rayleigh-Jeans Color Excess ("RJCE") method. RJCE determines star-by-star reddening based on a combination of near- and…

Astrophysics of Galaxies · Physics 2015-06-05 David L. Nidever , Gail Zasowski , Steven R. Majewski

Studies of the properties of the inner Galactic Bulge depend strongly on the assumptions about the interstellar extinction. Most of the extinction maps available in the literature lack the information about the distance. We combine the…

Astrophysics of Galaxies · Physics 2015-06-12 B. Q. Chen , M. Schultheis , B. W. Jiang , O. A. Gonzalez , A. C. Robin , M. Rejkuba , D. Minniti

We present a three-dimensional map of interstellar dust reddening, covering three-quarters of the sky out to a distance of several kiloparsecs, based on Pan-STARRS 1 and 2MASS photometry. The map reveals a wealth of detailed structure, from…

We present a new three-dimensional map of dust reddening, based on Gaia parallaxes and stellar photometry from Pan-STARRS 1 and 2MASS. This map covers the sky north of a declination of -30 degrees, out to a distance of several kiloparsecs.…

Astrophysics of Galaxies · Physics 2020-01-08 Gregory M. Green , Edward F. Schlafly , Catherine Zucker , Joshua S. Speagle , Douglas P. Finkbeiner

Cosmological surveys must correct their observations for the reddening of extragalactic objects by Galactic dust. Existing dust maps, however, have been found to have spatial correlations with the large-scale structure of the Universe.…

Astrophysics of Galaxies · Physics 2023-05-31 Nayantara Mudur , Core Francisco Park , Douglas P Finkbeiner

We extract J and K_s magnitudes from the 2MASS Point Source Catalog for approximately 6 million stars with 8 < K_s < 13 in order to build an A_K extinction map within 10 degrees of the Galactic centre. The extinction was determined by…

Astrophysics · Physics 2009-11-07 C. M. Dutra , B. X. Santiago , E. L. D. Bica , B. Barbuy

The dust extinction curve is a critical component of many observational programs and an important diagnostic of the physics of the interstellar medium. Here we present new measurements of the dust extinction curve and its variation towards…

Dust plays a critical role in the study of the interstellar medium (ISM). Extinction maps derived from optical surveys often fail to capture regions with high column density due to the limited photometric depth in optical wavelengths. To…

Astrophysics of Galaxies · Physics 2025-10-17 Miaomiao Zhang , Jouni Kainulainen , He Zhao , Yang Su , Min Fang , Yuehui Ma , Zhiwei Chen , Zhibo Jiang

Recently Wo\'zniak \& Stanek (1996) proposed a new method to investigate interstellar extinction, based on two band photometry, which uses red clump stars as a means to construct the reddening curve. I apply this method to the…

Astrophysics · Physics 2009-10-28 K. Z. Stanek

The dust extinction curves toward individual sight lines in M33 are derived for the first time with a sample of reddened O-type and B-type supergiants obtained from the LGGS. The observed photometric data are obtained from the LGGS, PS1…

Astrophysics of Galaxies · Physics 2022-06-29 Yuxi Wang , Jian Gao , Yi Ren , Bingqiu Chen

We present a comprehensive 3D dust reddening map covering the entire Milky Way, constructed by combining reddening estimates based on LAMOST low-resolution spectra (E(B$-$V)$_{\rm LAMOST}$) with those derived from $Gaia$ XP spectra…

Astrophysics of Galaxies · Physics 2025-09-10 Tao Wang , Haibo Yuan , Bingqiu Chen , Maosheng Xiang , Ruoyi Zhang , Bowen Huang , Hongrui Gu , Shuaicong Wang , Jiawei Li

We present a scheme for using stellar catalogues to map the three-dimensional distributions of extinction and dust within our Galaxy. Extinction is modelled as a Gaussian random field, whose covariance function is set by a simple physical…

Instrumentation and Methods for Astrophysics · Physics 2015-06-19 S. E. Sale , J. Magorrian

We present a novel methodology for mapping dust extinction in nearby galaxies at parsec-scale resolution. We apply it to HST 68 fields within the Small and Large Magellanic Clouds (23 fields in the SMC and 45 fields in the LMC) using…

By combining the photometric, spectroscopic, and astrometric information of the stars in the sightline of SNRs, the distances to and the extinctions of 32 Galactic supernova remnants (SNRs) are investigated. The stellar atmospheric…

Solar and Stellar Astrophysics · Physics 2020-03-25 He Zhao , Biwei Jiang , Jun Li , Bingqiu Chen , Bin Yu , Ye Wang

We present a large catalogue of molecular clouds with accurate distance estimates in the southern sky. Based on the three-dimensional (3D) dust extinction map and the best-fit extinction and distance information of over 17 million stars…

Astrophysics of Galaxies · Physics 2022-02-23 Helong Guo , Bingqiu Chen , Xiaowei Liu

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

Context. While Gaia enables to probe in great detail the extended local neighbourhood, the thin disk structure at larger distances remains sparsely explored. Aims. We aim here to build a non-parametric 3D model of the thin disc structures…

Astrophysics of Galaxies · Physics 2020-09-16 C. Babusiaux , C. Fourtune-Ravard , C. Hottier , F. Arenou , A. Gomez

Inferences about the spatial density or phase-space structure of stellar populations in the Milky Way require a precise determination of the effective survey volume. The volume observed by surveys such as Gaia or near-infrared spectroscopic…

Astrophysics of Galaxies · Physics 2016-06-07 Jo Bovy , Hans-Walter Rix , Gregory M. Green , Edward F. Schlafly , Douglas P. Finkbeiner

We present "augustus", a catalog of distance, extinction, and stellar parameter estimates to 170 million stars from $14\,{\rm mag} < r < 20\,{\rm mag}$ and with $|b| > 10^\circ$ drawing on a combination of optical to near-IR photometry from…