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The Milky Way extinction curve in the near-infrared (NIR) follows a power law form, but the value of the slope, $\beta_\text{NIR}$, is debated. Systematic variations in the slope of the Milky Way UV extinction curve are known to be…

Astrophysics of Galaxies · Physics 2023-12-20 Robert E. Butler , Samir Salim

The Milky Way (MW) remains a primary laboratory for understanding the structure and evolution of spiral galaxies, but typically we are denied clear views of MW stellar populations at low Galactic latitudes because of extinction by…

Astrophysics of Galaxies · Physics 2015-05-28 Steven R. Majewski , Gail Zasowski , David L. Nidever

Extinction in ultraviolet is much more significant than in optical or infrared, which can be very informative to precisely measure the extinction and understand the dust properties in the low extinction areas. The high Galactic latitude sky…

Astrophysics of Galaxies · Physics 2021-06-23 Mingxu Sun , Biwei Jiang , Haibo Yuan , Jun Li

The viability of the star count (Wolf) method is assessed as a means of constraining the near-infrared (NIR) extinction law toward the Corona Australis molecular cloud. Using deep $JHK_S$ photometry from the VISIONS survey, extinction maps…

Astrophysics of Galaxies · Physics 2025-07-01 Botao Jiang , Jun Li , Xi Chen

We constrain the light extinction properties of Milky Way dust. We investigated the correlations between dust column density as inferred from infrared data and the observed colours of celestial objects at cosmological distances with low…

Astrophysics of Galaxies · Physics 2015-06-11 Edvard Mortsell

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

Using a high-resolution cosmological hydrodynamic simulation, we present a method to constrain extinction due to intergalactic grey dust based on the observed magnitudes of distant Type IA supernovae. We apply several simple prescriptions…

Astrophysics · Physics 2015-09-23 Rupert A. C. Croft , Romeel Dave' , Lars Hernquist , Neal Katz

In this paper we present XNICER, an optimized multi-band extinction technique based on the extreme deconvolution of the intrinsic colors of objects observed through a molecular cloud. XNICER follows a rigorous statistical approach and…

Instrumentation and Methods for Astrophysics · Physics 2019-05-03 Marco Lombardi

Extragalactic astronomy relies on the accurate estimation of source photometry corrected for Milky Way dust extinction. This has motivated the creation of a number of "Galactic" dust maps. We investigate whether these maps are contaminated…

Astrophysics of Galaxies · Physics 2019-01-23 Yi-Kuan Chiang , Brice Ménard

Investigating the extinction law in regions of high dust extinction, such as the Pillars of Creation within the M16 region, is crucial for understanding the densest parts of the interstellar medium (ISM). In this study, we utilize…

Astrophysics of Galaxies · Physics 2024-06-06 Jun Li , Bingqiu Chen , Biwei Jiang , Jian Gao , Xi Chen

We have obtained accurate dust reddening from far-ultraviolet (UV) to the mid-infrared (IR) for up to 5 million stars by the star-pair algorithm based on LAMOST stellar parameters along with GALEX, Pan-STARRS 1, Gaia, SDSS, 2MASS, and WISE…

Astrophysics of Galaxies · Physics 2023-01-18 Ruoyi Zhang , Haibo Yuan

Accurate interpretation of observations relies on the interstellar dust extinction law, which also serves as a powerful diagnostic for probing dust properties. In this study, we investigate the multi-wavelength extinction law of the…

Astrophysics of Galaxies · Physics 2025-02-14 Juan Deng , Shu Wang , Biwei Jiang , He Zhao

We use SDSS photometry of 73 million stars to simultaneously obtain best-fit main-sequence stellar energy distribution (SED) and amount of dust extinction along the line of sight towards each star. Using a subsample of 23 million stars with…

We present a new analysis of high-redshift UV observations using a semi-analytic galaxy formation model, and provide self-consistent predictions of the infrared excess (IRX) -- $\beta$ relations and cosmic star formation rate density. We…

Astrophysics of Galaxies · Physics 2019-08-21 Yisheng Qiu , Simon J. Mutch , Elisabete da Cunha , Gregory B. Poole , J. Stuart B. Wyithe

Near-infrared color-excess and extinction ratios are essential for establishing the cosmic distance scale and probing the Galaxy, particularly when analyzing targets attenuated by significant dust. A robust determination of those ratios…

Astrophysics of Galaxies · Physics 2016-10-12 D. Majaess , D. Turner , I. Dekany , D. Minniti , W. Gieren

The presence of dark energy in the Universe is inferred directly from the accelerated expansion of the Universe, and indirectly, from measurements of cosmic microwave background (CMB) anisotropy. Dark energy contributes about 2/3 of the…

Astrophysics · Physics 2011-05-05 Dragan Huterer , Michael S. Turner

The presence of dark energy in the Universe is inferred directly from the accelerated expansion of the Universe, and indirectly, from measurements of cosmic microwave background (CMB) anisotropy. Dark energy contributes about 2/3 of the…

Astrophysics · Physics 2009-11-06 Dragan Huterer , Michael S. Turner

We determine the extinction law through Cep OB3b, a young cluster of 3000 stars undergoing gas dispersal. The extinction is measured toward 76 background K giants identified with MMT/Hectospec spectra. Color excess ratios were determined…

We analyze extragalactic extinction profiles derived through gamma-ray burst afterglows, using a dust model specifically constructed on the assumption that dust grains are not immutable but respond time-dependently to the local physics.…

Astrophysics of Galaxies · Physics 2016-10-04 Alberto Zonca , Cesare Cecchi-Pestellini , Giacomo Mulas , Silvia Casu , Giambattista Aresu

We present the fiducial main sequence stellar locus traced by 10 photometric colors observed by SDSS, 2MASS, and WISE. Median colors are determined using 1,052,793 stars with r-band extinction less than 0.125. We use this locus to measure…