Results 61 to 70 of about 52,995 (203)

DETERMINING INTERSTELLAR REDDENING: A NEW APPROACH USING SPECTROSCOPY AND PHOTOMETRY [PDF]

, 2011
The mystery of Canis Major overdensity is addressed. We discuss concurrent methods and their limitations on the determination of interstellar reddening.
Uddin, Syed A.
core   +1 more source

Three-dimensional Reddening Maps of the Magellanic Clouds Constructed by RR Lyrae Stars

The Astronomical Journal
We present the first three-dimensional reddening maps of the Large and Small Magellanic Clouds (LMC and SMC) constructed using fundamental-mode RR Lyrae stars (RRab) from the Optical Gravitational Lensing Experiment (OGLE) survey.
Shun-Xuan He, Yang Huang
doaj   +1 more source

Mass–Metallicity Relationship of SDSS Star-forming Galaxies: Population Synthesis Analysis and Effects of Star Burst Length, Extinction Law, Initial Mass Function, and Star Formation Rate

The Astrophysical Journal, 2023
We investigate the mass–metallicity relationship of star-forming galaxies by analyzing the absorption line spectra of ∼200,000 galaxies in the Sloan Digital Sky Survey.
Eva Sextl, Rolf-Peter Kudritzki, H. Jabran Zahid, I-Ting Ho   +3 more
doaj   +1 more source

2Mass two-color interstellar reddening lines: the band-width effect

, 2020
The band-width effect on interstellar reddening lines in the J-H vs. H-Ks diagram of the 2MASS survey is investigated using synthetic color indices and color excesses based on the Kurucz model atmospheres. At large interstellar reddenings {EH-KS > 1-0)
Straižys, Vytautas, Lazauskaitė, Romualda   +1 more
core  

Overlapping Open Clusters NGC 1750 and NGC 1758 behind the Taurus Dark Clouds. II. CCD Photometry in the Vilnius System

Open Astronomy, 2003
Seven-color photometry in the Vilnius system has been obtained for 420 stars down to V = 16 mag in the area containing the overlapping open clusters NGC 1750 and NGC 1758 in Taurus.
Straižys V., Kazlauskas A., Černiauskas A., Boyle R. P., Vrba F. J., Philip A. G. Davis, Laugalys V., Černis K., Smriglio F.   +8 more
doaj   +1 more source

Blanco DECam Bulge Survey (BDBS). VI. Extinction Maps Toward Southern Galactic Bulge Globular Clusters

The Astrophysical Journal, 2023
We present wide-field, high resolution maps of the color excess for 14 globular clusters toward the Southern Galactic bulge. The maps were derived using Gaia EDR3 astrometry and stellar photometry from the Blanco DECam Bulge Survey, which is a deep, wide-
Justin A. Kader, Catherine A. Pilachowski, Christian I. Johnson, R. Michael Rich, Michael D. Young, Iulia T. Simion, William I. Clarkson, Scott Michael, Andrea Kunder, Anna Katherina Vivas, Andreas J. Koch-Hansen, Tommaso Marchetti   +11 more
doaj   +1 more source

On the Methods of Correction for the Interstellar Reddening of Planetary Nebulae [PDF]

Symposium - International Astronomical Union, 1968
Knowledge of the interstellar extinction is of great importance for the study of the properties of planetary nebulae. An estimate of the interstellar reddening for an individual nebula may be obtained by means of three independent methods. In the first method the observed Balmer decrement is compared with the theoretical decrement (case B of Baker and ...
openaire   +1 more source

Mapping Interstellar Dust in the Foreground Outer Disk of Overlapping Galaxy Pair VV 191 with HST and JWST

The Astronomical Journal
VV 191 is a nearby ( z ∼ 0.05), overlapping (occulting) galaxy pair, where a multiple-armed spiral galaxy is backlit by an elliptical galaxy. The overlap is used to derive and map dust attenuation in two James Webb Space Telescope NIRCam filters (F090W ...
Clayton D. Robertson, Benne W. Holwerda, Jessica M. Berkheimer, Trevor Butrum, Ian Castellano, Kyle W. Cook, William C. Keel, Anton M. Koekemoer, Divya Patel, Maria del Carmen Polletta, Rogier A. Windhorst   +10 more
doaj   +1 more source

Searching for a variability of interstellar reddening in the line of sight of NGC 4833

, 2015
International audienceThe globular cluster NGC 4833 lies near the galactic plane. It is known to exhibit a strong differential reddening caused by several galactic interstellar clouds in its line of sight.
Itam-Pasquet, Johanna, Pfenniger, D., Puy, Denis, Jasniewicz, Gérard   +3 more
core   +1 more source

The Flattest Infrared Extinction Curve in Four Isolated Dense Molecular Cloud Cores

The Astrophysical Journal Letters
The extinction curve of interstellar dust in the dense molecular cloud cores is crucial for understanding dust properties, particularly size distribution and composition.
Jun Li, Bingqiu Chen, Biwei Jiang, He Zhao, Botao Jiang, Xi Chen   +5 more
doaj   +1 more source