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200 papers

As thousands of new open clusters in the Galaxy have recently been reported with reddening or extinction information, we map the distribution and properties of the Galaxy's interstellar material in the Galactic disk as traced by these open…

Astrophysics of Galaxies · Physics 2025-06-06 Yogesh C. Joshi

Galaxies reside in extended dark matter halos, but their baryonic content, especially dust, remains less well understood. We aim to investigate the amount and distribution of dust in galactic halos by measuring shifts in the observed…

Astrophysics of Galaxies · Physics 2025-08-22 Eray Genc , Angus H. Wright , Hendrik Hildebrandt

We use spectra of more than 56,000 M dwarfs from the Sloan Digital Sky Survey (SDSS) to create a high-latitude extinction map of the local Galaxy. Our technique compares spectra from the stars in the SDSS Data Release 7 M dwarf sample in…

Astrophysics of Galaxies · Physics 2015-05-27 David O. Jones , Andrew A. West , Jonathan B. Foster

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

Similar to the magnification of the galaxies' fluxes by gravitational lensing, the extinction of the fluxes by comic dust, whose existence is recently detected by Menard et al (2009), also modify the distribution of a flux-selected galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Wenjuan Fang , Lam Hui , Brice Menard , Morgan May , Ryan Scranton

Dust can play an important role in shaping the X-ray spectra and images of astrophysical sources. In this work we report on the implementation of dust in the ray-tracing platform RefleX. We illustrate the different effects associated to the…

High Energy Astrophysical Phenomena · Physics 2023-06-08 Claudio Ricci , Stéphane Paltani

We map the distribution and properties of the Milky Way's interstellar medium as traced by diffuse interstellar bands (DIBs) detected in near-infrared stellar spectra from the SDSS-III/APOGEE survey. Focusing exclusively on the strongest…

Survey observations of the three-dimensional locations of galaxies are a powerful approach to measure the distribution of matter in the universe, which can be used to learn about the nature of dark energy, physics of inflation, neutrino…

We present an algorithm ({\scshape mead}, for `Mapping Extinction Against Distance') which will determine intrinsic ($r' - i'$) colour, extinction, and distance for early-A to K4 stars extracted from the IPHAS $r'/i'/\Halpha$ photometric…

Dust extinction is generally the least tractable systematic uncertainty in astronomy, and particularly in supernova science. Often in the past, studies have used the equivalent width of Na I D absorption measured from low-resolution spectra…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Dovi Poznanski , Mohan Ganeshaligam , Jeffrey M. Silverman , Alexei V. Filippenko

We report H$\alpha$ filter photometry for 197 northern hemisphere planetary nebulae (PNe) obtained using imaging data from the IPHAS survey. H$\alpha$+[N II] fluxes were measured for 46 confirmed or possible PNe discovered by the IPHAS…

Astrophysics of Galaxies · Physics 2020-12-23 Thavisha E. Dharmawardena , M. J. Barlow , J. E. Drew , A. Seales , S. E. Sale , D. Jones , A. Mampaso , Q. A. Parker , L. Sabin , R. Wesson

In the interstellar medium, the cosmic elemental carbon abundance includes the total carbon in both gas and solid phases. The aim of the study was to trial a new method for measuring the amount and distribution of aliphatic carbon within…

Astrophysics of Galaxies · Physics 2020-02-13 B. Günay , M. G. Burton , M. Afşar , T. W. Schmidt

In most studies of dust in galaxies, dust is only detected from its emission to approximately the optical radius of the galaxy. By combining the signal of 110 spiral galaxies observed as part of the Herschel Reference Survey, we are able to…

We present a new technique to extract the cosmological information from high-redshift supernova data in the presence of calibration errors and extinction due to dust. While in the traditional technique the distance modulus of each supernova…

Astrophysics · Physics 2014-10-13 Alex G. Kim , Ramon Miquel

Precise correction of dust reddening is fundamental to obtain the intrinsic parameters of celestial objects. The Schlegel et al. (SFD) and the Planck 2D extinction maps are widely used for the reddening correction. In this work, using…

Astrophysics of Galaxies · Physics 2022-06-16 Yang Sun , Haibo Yuan , Bingqiu Chen

Although interstellar dust extinction serves as a powerful distance estimator, the solar system's location within the Galactic plane complicates distance determinations, especially for molecular clouds (MCs) at varying distances along the…

Astrophysics of Galaxies · Physics 2025-08-22 Shiyu Zhang , Yang Su , Xuepeng Chen , Min Fang , Fujun Du , Shaobo Zhang , Qing-Zeng Yan , Xin Liu , Miaomiao Zhang , Yan Sun , Ji Yang

Holography is 3D imaging which can record intensity and phase at the same time. The importance of construct hologram is holographic recording and wavefront reconstruction. It is surprised that holography be discovered in study interstellar…

Astrophysics · Physics 2009-11-02 Jiang Dong

We present the measurement of the line-of-sight extinction of the dusty torus for a large number of obscured active galactic nuclei (AGNs) based on the reddening of the colour of the variable flux component in near-infrared (NIR)…

We present the preliminary results of Monte Carlo simulations aimed to investigate the effects of realistic dust extinction (absorption + scattering) on the colours of high-z galaxies. In this paper, we concentrate on the case of spheroidal…

Astrophysics · Physics 2016-01-13 Andrea Cimatti , Simone Bianchi , Andrea Ferrara , Carlo Giovanardi

The pervasive interstellar dust grains provide significant insights to understand the formation and evolution of the stars, planetary systems, and the galaxies, and may harbor the building blocks of life. One of the most effective way to…

Computer Vision and Pattern Recognition · Computer Science 2015-11-23 Min Li , Sudeep Gaddam , Xiaolin Li , Yinan Zhao , Jingzhe Ma , Jian Ge