Results 1 to 10 of about 5,843,387 (165)
The photometry and kinematics studies of NGC 2509 derived from Gaia DR3 [PDF]
Scientific ReportsThis research uses the third edition of the Gaia Data Release (DR3) to re-investigate the open star cluster NGC 2509. We employed the pyUPMASK Python package and HDBSCAN algorithms to identify the cluster member stars.
Nasser M. Ahmed, A. L. Tadross
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The Astrophysical Journal, 2023 Interstellar-dust extinction law is essential for interpreting observations. In this work, we investigate the ultraviolet (UV)–mid-infrared (IR) extinction law of the Taurus molecular cloud and its possible variations. We select 504,988 dwarf stars (4200
Ling Li +3 more
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HST NIC3 Photometry of Metal-Rich Globular Clusters Palomar 6, Liller 1, and 47 Tuc (NGC 104) [PDF]
Journal of Astronomy and Space Sciences, 2004 We present HST NIC3 photometry of metal-rich globular clusters Palomar 6, Liller 1 and 47 Tuc (NGC 104). We discuss the interstellar reddening law for the HST NICMOS F110W/F160W photometric system which depends on the temperature of the source.
Jae-Woo Lee
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The Astrophysical Journal, 2023 Precise interstellar dust extinction laws are important to infer the intrinsic properties of reddened objects and correctly interpret observations. In this work, we attempt to measure the optical–infrared extinction laws of the Large and Small Magellanic
Shu Wang, Xiaodian Chen
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A Walk through AGN Country—For the Somewhat Initiated!
Galaxies, 2023 Key issues in AGN and galaxy formation are discussed. Very successful Unified Models explain much of the variety of AGN with orientation effects; the ingredients are shadowing by a dusty “torus” and relativistic beaming.
Robert R. J. Antonucci
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JWST’s PEARLS: Dust Attenuation and Gravitational Lensing in the Backlit-galaxy System VV 191
The Astronomical Journal, 2023 We derive the spatial and wavelength behavior of dust attenuation in the multiple-armed spiral galaxy VV 191b using backlighting by the superimposed elliptical system VV 191a in a pair with an exceptionally favorable geometry for this measurement ...
William C. Keel +30 more
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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 +8 more
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The Astrophysical Journal LettersThe interstellar extinction law is important for interpreting observations and inferring the properties of interstellar dust grains. Based on the 993 prism/CLEAR spectra from the James Webb Space Telescope (JWST), we investigate the 0.6–5.3 μ m ...
Shu Wang, Xiaodian Chen
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Three-dimensional Reddening Maps of the Magellanic Clouds Constructed by RR Lyrae Stars
The Astronomical JournalWe 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
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A Near-infrared Extinction and Reddening Map toward the Galactic Bulge Using UKIRT
The Astronomical JournalThe Galactic bulge is one of the most information-dense regions to study resolved stellar populations, variables, and transients, such as microlensing events.
Aiden S. Zelakiewicz +5 more
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