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Related papers: Modelling the Galactic Interstellar Extinction Dis…

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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

The distribution of visual interstellar extinction $A_V$ has been mapped in selected areas over the Northern sky, using available LAMOST DR5 and Gaia DR2/EDR3 data. $A_V$ was modelled as a barometric function of galactic latitude and…

Astrophysics of Galaxies · Physics 2021-07-15 Alexei Nekrasov , Kirill Grishin , Dana Kovaleva , Oleg Malkov

A serious limitation in the study of many globular clusters -- especially those located near the Galactic Center -- has been the existence of large and differential extinction by foreground dust. In a series of papers we intend to map the…

Astrophysics of Galaxies · Physics 2015-05-27 Javier Alonso-García , Mario Mateo , Bodhisattva Sen , Moulinath Banerjee , Kaspar von Braun

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

We present new three-dimensional (3D) interstellar extinction maps in the $V$ and Gaia $G$ filters within 2 kpc of the Sun, a 3D differential extinction (dust spatial distribution density) map along the lines of sight in the same space, a…

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

3D tomography of the interstellar dust and gas may be useful in many respects, from the physical and chemical evolution of the ISM itself to foreground decontamination of the CMB, or various studies of the environments of specific objects.…

Astrophysics of Galaxies · Physics 2015-05-18 Jean-Luc Vergely , Bernard Valette , Rosine Lallement , Severine Raimond

The Milky Way's central parsec is a highly extinguished region with a population of high-proper-motion stars. We have tracked 145 stars for $\sim$10 years at wavelengths between 1 and 4 microns to analyze extinction effects in…

Astrophysics of Galaxies · Physics 2024-08-13 Z. Haggard , A. M. Ghez , S. Sakai , A. K. Gautam , T. Do , J. R. Lu , M. Hosek , M. R. Morris , S. Granados

3D maps of the extinction density in the Galaxy can be built through the inversion of catalogues of distance-extinction pairs for individual target stars. The spatial resolution of the maps that can be achieved increases with the spatial…

Astrophysics of Galaxies · Physics 2022-08-31 J. L. Vergely , R. Lallement , N. L. J. Cox

We propose a general method for mapping the extinction in dense molecular clouds using 2MASS near-infrared data. The technique is based on the simultaneous utilization of star counts and colors. These two techniques provide independent…

Astrophysics · Physics 2009-11-07 L. Cambresy , C. A. Beichman , T. H. Jarrett , R. M. Cutri

DENIS observations in the J (1.2 micron) and K_S (2.15 micron) bands together with isochrones calculated for the RGB and AGB phase are used to draw an extinction map of the inner Galactic Bulge. The uncertainty in this method is mainly…

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 model the ~1--19$\mum$ infrared (IR) extinction curve toward the Galactic Center (GC) in terms of the standard silicate-graphite interstellar dust model. The grains are taken to have a power law size distribution with an exponential…

Astrophysics of Galaxies · Physics 2015-06-16 Jian Gao , Aigen Li , B. W. Jiang

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…

The high cosmological precision offered by the next generation of galaxy surveys hinges on improved corrections for Galactic dust extinction. We explore the possibility of estimating both the dust extinction and large-scale structure from a…

Cosmology and Nongalactic Astrophysics · Physics 2021-11-17 Matías Bravo , Eric Gawiser , Nelson D. Padilla , Joseph DeRose , Risa H. Wechsler , The LSST Dark Energy Science Collaboration

We present new three-dimensional (3D) interstellar dust reddening maps of the Galactic plane in three colours, E(G-Ks), E(Bp-Rp) and E(H-Ks). The maps have a spatial angular resolution of 6 arcmin and covers over 7000 deg$^2$ of the…

Astrophysics of Galaxies · Physics 2018-12-19 B. -Q. Chen , Y. Huang , H. -B. Yuan , C. Wang , D. -W. Fan , M. -S. Xiang , H. -W. Zhang , Z. -J. Tian , X. -W. Liu

We present a method for accurately and precisely inferring photometric dust extinction towards stars at mid-to-high Galactic latitudes using probabilistic machine learning to model the colour-magnitude distribution of zero-extinction stars…

Astrophysics of Galaxies · Physics 2025-12-15 Matthew O'Callaghan , Kaisey S. Mandel , Gerry Gilmore

With modern large scale spectroscopic surveys, such as the SDSS and LSS-GAC, Galactic astronomy has entered the era of millions of stellar spectra. Taking advantage of the huge spectroscopic database, we propose to use a "standard pair"…

Astrophysics of Galaxies · Physics 2015-06-16 Haibo Yuan , Xiaowei Liu , Maosheng Xiang , Zhiying Huo , Huihua Zhang , Yang Huang , Huawei Zhang

Galactic interstellar extinction maps are powerful and necessary tools for Milky Way structure and stellar population analyses, particularly toward the heavily-reddened bulge and in the midplane. However, due to the difficulty of obtaining…

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