Results 31 to 40 of about 29,479 (190)

Seeing Galaxies Through Thick & Thin. III. HST Imaging of the Dust in Backlit Spiral Galaxies [PDF]

, 2000
We present analysis of WFPC2 imaging of two spiral galaxies partially backlit by E/S0 systems in the pairs AM1316-241 and AM0500-620, and the spiral foreground system in NGC 1275.
Disney M. J., Ettori S., Holmberg E., Raymond E. White, III, William C. Keel   +4 more
core   +2 more sources

Reddening and Extinction Toward the Galactic Bulge from OGLE-III: The Inner Milky Way's Rv ~ 2.5 Extinction Curve [PDF]

, 2013
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.
Albrow, Andrew Gould, Andrews, Andrzej Udalski, Benjamin, Bennett, Brown, Brown, Castellani, Clarkson, Cohen, Cohen, Conroy, David M. Nataf, De Propris, Eisenhauer, Epstein, Falco, Fritz, Fulbright, Gao, Gerhard, Ghez, Gould, Gould, Gould, Grzegorz Pietrzyński, Igor Soszyński, Indebetouw, Jan Skowron, Jennifer A. Johnson, Johnson, Johnson, Johnson, Johnson, Kiraga, Koch, Krzysztof Ulaczyk, Kunder, Kunder, Kunder, Li, Liebert, Lopez-Corredoira, Majaess, Mandel, Marcin Kubiak, Martinez-Valpuesta, McWilliam, Michał K. Szymański, Nataf, Nataf, Nataf, Nataf, Nataf, Nataf, Nataf, Ness, Nidever, Nishiyama, Nishiyama, Nishiyama, Nishiyama, Oscar A. Gonzalez, Paczyński, Paczyński, Pascal Fouqué, Perryman, Pietrinferni, Pietrinferni, Pietrukowicz, Pietrzyński, Popowski, Radosław Poleski, Ramírez, Rich, Saito, Salasnich, Sarajedini, Schlegel, Schultz, Shen, Skrutskie, Soszyński, Stanek, Stanek, Stutz, Szymański, Thompson, Thorsett, Udalski, Udalski, Udalski, Yoo, Zasowski, Zoccali, Łukasz Wyrzykowski   +96 more
core   +1 more source

An HST Study of the Substellar Population of NGC 2024

The Astrophysical Journal, 2023
We performed an HST/WFC3-IR imaging survey of the young stellar cluster NGC 2024 in three filters probing the 1.4 μ m H _2 O absorption feature, characteristic of the population of low-mass and substellar-mass objects down to a few Jupiter masses.
Massimo Robberto, Mario Gennaro, Nicola Da Rio, Giovanni Maria Strampelli, Leonardo Ubeda, Elena Sabbi, Dana Koeppe, Jonathan C. Tan, David R. Soderblom   +8 more
doaj   +1 more source

Hubble Tarantula Treasury Project. IV. The extinction law [PDF]

, 2015
We report on the study of interstellar extinction across the Tarantula nebula (30 Doradus), in the Large Magellanic Cloud, using observations from the Hubble Tarantula Treasury Project in the 0.3 - 1.6 micron range. The considerable and patchy extinction
Aloisi, Alessandra, Anderson, Jay, Cignoni, Michele, De Marchi, Guido, Gouliermis, Dimitrios, Grebel, Eva K., Larsen, Soeren, Lennon, Daniel, Panagia, Nino, Sabbi, Elena, van der Marel, Roeland, Zaritsky, Dennis, Zeidler, Peter   +12 more
core   +4 more sources

The metal-rich globular clusters of the Milky Way [PDF]

, 1999
We present new (V,V-I)-photometry of the metal-rich globular clusters NGC 5927, 6316, 6342, 6441 and 6760. The clusters show differential reddening up to dE(V-I)=0.32 mag, for which the CMDs are corrected via extinction maps.
Heitsch, F., Richtler, T.
core   +4 more sources

Reddening and the Extinction Law at High Galactic Latitude

The Astrophysical Journal, 2005
We present near-infrared (JHKL) photometry of 103 southern stars located behind translucent interstellar clouds at high Galactic latitude. Our data are combined with visual photometry and spectral type information from the literature in a detailed analysis of the wavelength dependence of interstellar extinction by dust in these high-latitude clouds. We
K. A. Larson, D. C. B. Whittet
openaire   +2 more sources

Massive luminous early type stars in the LMC [PDF]

Astronomy & Astrophysics, 2002
In order to construct a comprehensive HRD of early type stars in the Large Magellanic Cloud (LMC) in the first step the reddenings of individual stars and the LMC reddening law have been investigated. 1942 LMC member stars with good UBV photometries from the Bochum photometry data base have been first corrected individually for galactic foreground ...
Gochermann, J., Schmidt-Kaler, T.
openaire   +2 more sources

The Galactic extinction and reddening from the South Galactic Cap U-band Sky Survey: u band galaxy number counts and $u-r$ color distribution

, 2017
We study the integral Galactic extinction and reddening based on the galaxy catalog of the South Galactic Cap U-band Sky Survey (SCUSS), where $u$ band galaxy number counts and $u-r$ color distribution are used to derive the Galactic extinction and ...
Fan, Dongwei, Fan, Xiaohui, Fan, Zhou, He, Boliang, Hou, Jinliang, Jiang, Zhaoji, Jing, Yipeng, Lesser, Michael, Li, Cheng, Li, Linlin, Ma, Jun, Nie, Jundan, Peng, Xiyan, Shen, Shiyin, Wang, Jiali, Wu, Zhenyu, Yuan, Fangting, Zhang, Tianmeng, Zhong, Jing, Zhou, Xu, Zhou, Zhimin, Zou, Hu   +21 more
core   +1 more source

Quasars and the Big Blue Bump [PDF]

, 2004
We investigate the ultraviolet-to-optical spectral energy distributions (SEDs) of 17 active galactic nuclei (AGNs) using quasi-simultaneous spectrophotometry spanning 900-9000 Angstrom (rest frame).
Anuradha Koratkar, Brinkmann W., Czerny B., Gerard A. Kriss, Ivan Hubeny, Jennifer Scott, Jessica Kim Quijano, John Hutchings, Laor A., Laor A., Mary Elizabeth Kaiser, Michael S. Brotherton, Omer Blaes, Orr M. J. L., Prevot M. L., Richard F. Green, Shakura N. I., Wei Zheng, William Oegerle, Zhaohui Shang   +19 more
core   +1 more source

Reddening Behaviors of Galaxies in the SDSS Photometric System

, 2008
We analyze the behaviors of reddening vectors in the SDSS photometric system for galaxies of different morphologies, ages, and redshifts. As seen in other photometric systems, the dependence of reddening on the spectral energy distribution (SED) and the ...
Grebel E. K., Myung Gyoon Lee, Sungsoo S. Kim   +2 more
core   +1 more source