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Related papers: The Nuclear Bulge extinction

200 papers

Extinction remains one of the most reliable methods of measuring column density of nearby Galactic interstellar clouds. The current and ongoing near-infrared surveys enable the mapping of extinction over large sky areas. We produce allsky…

Astrophysics of Galaxies · Physics 2015-12-16 M. Juvela , J. Montillaud

We have determined the wavelength dependence of the extinction in the near-infrared bands ($J$, $H$, $K_{\mathrm S}$) toward the Galactic center from the VVV (VISTA Variables in the V\'ia L\'actea) aperture photometry of the stars in the…

Astrophysics of Galaxies · Physics 2019-09-25 Schun Nagatomo , Tetsuya Nagata , Shogo Nishiyama

We built K band extinction maps in the area of two candidate low-extinction windows in the inner Bulge: W0.2-2.1 at (l,b) = (0.25o,-2.15o), and W359.4-3.1 at (l,b) = (359.40o,-3.10o). We employed JHKs photometry from the 2MASS Point Source…

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

While the shape of the extinction curve on the infrared is considered to be set and the extinction ratios between infrared bands are usually taken to be approximately constant, a recent number of studies point either to a spatially variable…

We are studying the column density distribution of all nearby giant molecular clouds. As part of this project we generated several all sky extinction maps. They are calculated using the median near infrared colour excess technique applied…

Astrophysics of Galaxies · Physics 2009-11-13 J. Rowles , D. Froebrich

The wavelength-dependence of the extinction of Type Ia SN2014J in the nearby galaxy M82 has been measured using UV to near-IR photometry obtained with the Hubble Space Telescope, the Nordic Optical Telescope, and the Mount Abu Infrared…

We combine VI photometry from OGLE-III with VVV and 2MASS measurements of E(J-K_{s}) to resolve the longstanding problem of the non-standard optical extinction toward the Galactic bulge. We show that the extinction is well-fit by the…

The extinction law from $0.9$ to $8$ microns in the inner $3\times3$ deg$^2$ of the Milky Way is measured using data from VISTA Variables in the Via Lactea, GLIMPSE and WISE. Absolute extinction ratios are found by requiring that the…

Astrophysics of Galaxies · Physics 2022-06-08 Jason L. Sanders , Leigh C. Smith , Carlos González-Fernández , Philip Lucas , Dante Minniti

The detailed study of the Galactic bulge stellar population necessarily requires an accurate representation of the interstellar extinction particularly toward the Galactic plane and center, where the severe and differential reddening is…

Astrophysics of Galaxies · Physics 2021-01-04 F. Surot , E. Valenti , O. A. Gonzalez , M. Zoccali , E. Sökmen , S. L. Hidalgo , D. Minniti

We propose a new method to investigate the coefficient of the selective extinction, based on two band photometry. This method uses red clump stars as a means to construct the reddening curve. We apply this method to the OGLE color-magnitude…

Astrophysics · Physics 2009-10-28 P. R. Wozniak , K. Z. Stanek

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

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 used optical images acquired with the UVIS channel of the Wide Field Camera 3 on board of the Hubble Space Telescope to construct the first high-resolution extinction map in the direction of NGC 6440, a globular cluster located in the…

Solar and Stellar Astrophysics · Physics 2019-09-25 Cristina Pallanca , Francesco R. Ferraro , Barbara Lanzoni , Sara Saracino , Silvia Raso , Paola Focardi

Multicolor photometry from the Tycho-2 and 2MASS catalogues for 11 990 OB and 30 671 K-type red giant branch stars is used to detect systematic large-scale variations of the interstellar extinction law within the nearest kiloparsec. The…

Solar and Stellar Astrophysics · Physics 2016-07-04 George Gontcharov

We present a (V-R)-based reddening map of about 43 square degrees of the Galactic bulge/bar. The map is constructed using template image photometry from the MACHO microlensing survey, contains 9717 resolution elements, and is based on…

Astrophysics · Physics 2009-11-07 Piotr Popowski , Kem Cook , Andrew Becker

We determine the extinction curve from the UV to the near-IR for molecular clouds and investigate whether current models can adequately explain this wavelength dependence of the extinction. The aim is also to interpret the extinction in…

Astrophysics of Galaxies · Physics 2015-06-03 Sven Olofsson , Göran Olofsson

We measure the extinction law in the 30 Dor star formation region in the Large Magellanic Cloud using Early Release Observations taken with Near-Infrared Camera (NIRCam) onboard the JWST, thereby extending previous studies with the Hubble…

Astrophysics of Galaxies · Physics 2023-03-22 Katja Fahrion , Guido De Marchi

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

We present survey data in the narrow-band L filter (nbL), taken at UKIRT, for a total area of 277 square arcmin, roughly equally divided between four regions at zero Galactic latitude and longitudes +-4.3 deg and +-2.3 deg. The 80%…

Astrophysics · Physics 2015-06-24 M. Unavane , Gerard Gilmore

We determine and tabulate A(lambda)/A(K), the wavelength dependence of interstellar extinction, in the Galactic plane for 1.25um<lambda<8.0um along two lines of sight: l~42 and l~284. The first is a relatively quiescent and unremarkable…