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相关论文: High resolution reddening map in the direction of …

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We used optical images acquired with the Wide Field Camera of the Advanced Camera for Surveys onboard the Hubble Space Telescope and near-infrared data from GeMS/GSAOI to construct a high-resolution extinction map in the direction of the…

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…

太阳与恒星天体物理 · 物理学 2019-09-25 Cristina Pallanca , Francesco R. Ferraro , Barbara Lanzoni , Sara Saracino , Silvia Raso , Paola Focardi

This work consists of the first detailed photometric study of Terzan 6, one of the least known globular clusters in the Galactic bulge. Through the analysis of high angular resolution and multi-wavelength data obtained from adaptive optics…

Extinction maps are essential for tracing interstellar dust and enabling accurate stellar population studies in galaxies. Here, a high-resolution extinction distribution of nearby galaxy M33 is constructed by fitting multiband color indexes…

星系天体物理 · 物理学 2026-04-09 Yuxi Wang , Yi Ren , Jian Gao , Bingqiu Chen , Ying Li

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…

星系天体物理 · 物理学 2021-01-04 F. Surot , E. Valenti , O. A. Gonzalez , M. Zoccali , E. Sökmen , S. L. Hidalgo , D. Minniti

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…

天体物理学 · 物理学 2009-11-07 Piotr Popowski , Kem Cook , Andrew Becker

We live in a dusty Universe, and correcting for the dust extinction and reddening affects almost all aspects of the optical astronomy. Recently Schlegel, Finkbeiner & Davis published an all-sky reddening map based on the COBE/DIRBE and…

天体物理学 · 物理学 2007-05-23 K. Z. Stanek

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…

星系天体物理 · 物理学 2015-05-27 Javier Alonso-García , Mario Mateo , Bodhisattva Sen , Moulinath Banerjee , Kaspar von Braun

We present a 127deg x 63deg extinction map of the Anticenter of the Galaxy, based on <J-H> and <H-K> colour excess maps from 2MASS. This 8001 square degree map with a resolution of 4 arcminutes is provided as online material. The colour…

天体物理学 · 物理学 2009-06-23 D. Froebrich , G. C. Murphy , M. D. Smith , J. Walsh

We use the Vista Variables in the Via Lactea (VVV) ESO public survey data to measure extinction values in the complete area of the Galactic bulge covered by the survey at high resolution. We derive reddening values using the method…

星系天体物理 · 物理学 2015-06-04 O. A. Gonzalez , M. Rejkuba , M. Zoccali , E. Valenti , D. Minniti , M. Schultheis , R. Tobar , B. Chen

We take advantage of the exquisite quality of the Hubble Space Telescope astro-photometric catalog of the core of wCen presented in the first paper of this series to derive a high-resolution, high-precision, high-accuracy…

太阳与恒星天体物理 · 物理学 2017-06-21 A. Bellini , J. Anderson , R. P. van der Marel , I. R. King , G. Piotto , L. R. Bedin

We present a new 3D map of interstellar dust reddening, covering three quarters of the sky (declinations greater than -30 degrees) out to a distance of several kiloparsecs. The map is based on high-quality stellar photometry of 800 million…

Terzan 5 is a stellar system in the Galactic bulge commonly catalogued as a globular cluster. Through dedicated NIR photometry and spectroscopy we have discovered that it harbors two main stellar populations defining two distinct red clumps…

星系天体物理 · 物理学 2013-11-21 Barbara Lanzoni , the Cosmic-Lab Team

The Galactic bulge is one of the most information-dense regions to study resolved stellar populations, variables, and transients, such as microlensing events. Studies toward the Galactic bulge are complicated by the large and variable…

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…

星系天体物理 · 物理学 2015-06-12 B. Q. Chen , M. Schultheis , B. W. Jiang , O. A. Gonzalez , A. C. Robin , M. Rejkuba , D. Minniti

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…

星系天体物理 · 物理学 2022-08-31 J. L. Vergely , R. Lallement , N. L. J. Cox

We present detailed maps of the microlensing optical depth and event density over an area of 195 sq. deg towards the Galactic bulge. The maps are computed from synthetic stellar catalogues generated from the Besancon Galaxy Model, which…

天体物理学 · 物理学 2015-05-13 E. Kerins , A. C. Robin , D. J. Marshall

We present a map of the dust reddening to 4.5 kpc derived from Pan-STARRS1 stellar photometry. The map covers almost the entire sky north of declination -30 degrees at a resolution of 7' to 14', and is based on the estimated distances and…

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.…

星系天体物理 · 物理学 2023-05-31 Nayantara Mudur , Core Francisco Park , Douglas P Finkbeiner
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