Results 71 to 80 of about 192,158 (225)

A Slowly Pulsating Run‐Away B Star at High Galactic Latitude Ejected From a Spiral Arm

Astronomische Nachrichten, Volume 346, Issue 5, June 2025.
ABSTRACT We report the discovery of the young B6 V run‐away star LAMOST J083323.18 + 430825.4, 2.5 kpc above the Galactic plane. Its atmospheric parameters and chemical composition are determined from LAMOST spectra, indicating normal composition. Effective temperature (Teff$$ {T}_{\mathrm{eff}} $$ = 14,500$$ \mathrm{14,500} $$ K) and gravity (logg ...
Ulrich Heber, Maximilian Halenke, Aakash Bhat, Veronika Schaffenroth   +3 more
wiley   +1 more source

3D-Herschel: Constraining Dust Emission with Panchromatic Modeling of 3D-HST Galaxies

The Astrophysical Journal
We present 3D-Herschel, a new publicly released 0.3–350 μ m photometric catalog that combines deblended Herschel far-infrared (FIR) imaging with the CANDELS/3D-HST legacy fields to probe the dust-obscured Universe. Using the 17-parameter Bayesian fitting
Seamus McNulty, Mimi Song, Katherine E. Whitaker, Joel Leja, Aubrey Medrano, Elijah P. Mathews, Mark Dickinson, Hanae Inami, Ivo Labbe, Danilo Marchesini, Alexandra Pope, Irene Shivaei   +11 more
doaj   +1 more source

On the Age Distribution of Classical Cepheids in the Galaxy

Astronomische Nachrichten, Volume 346, Issue 5, June 2025.
ABSTRACT We revisit the problem of the positive correlation between age and Galactocentric distance seen in Galactic Classical Cepheids, which at first sight may seem counter‐intuitive in the context of inside‐out galaxy formation. To explain it, we use the Besançon Galaxy Model and a simulation of star particles in the Galactic disc coupled with ...
Friedrich Anders, Chloé Padois, Marc Vilanova Sar, Marcin Semczuk, Marc del Alcázar‐Julià, Francesca Figueras   +5 more
wiley   +1 more source

BVR CCD Photometric observation analysis of spiral galaxy Ic 467

Iraqi Journal of Physics, 2019
The structure and composition of the stellar population in the surface brightness galaxy Ic 467 is studied using BVR CCD photometry. The observations were obtained on the 1.88m optical telescope of Kottamia Astronomical Observatory, KAO, Egypt.
Sinan H. Ali
doaj   +1 more source

Lactea: Web‐Based Spectrum‐Preserving Multi‐Resolution Visualization of the GAIA Star Catalog

Computer Graphics Forum, Volume 44, Issue 3, June 2025.
Abstract The explosion of data in astronomy has resulted in an era of unprecedented opportunities for discovery. The GAIA mission's catalog, containing a large number of light sources (mostly stars) with several parameters such as sky position and proper motion, is playing a significant role in advancing astronomy research and has been crucial in ...
Reem Alghamdi, Markus Hadwiger, Guido Reina, Alberto Jaspe‐Villanueva   +3 more
wiley   +1 more source

Galaxy Surface Photometry with Kodak Technical Pan Film

, 1993
Recent tests at the UKST with large-format Kodak Technical Pan 4415 film on a thick estar base have proved to be extremely successful. Deep, sky- limited photographs with excellent image quality and resolution have been obtained.
Phillipps, S, Parker, QA
core   +1 more source

Morpho-z: improving photometric redshifts with galaxy morphology [PDF]

, 2017
We conduct a comprehensive study of the effects of incorporating galaxy morphology information in photometric redshift estimation. Using machine learning methods, we assess the changes in the scatter and outlier fraction of photometric redshifts when ...
Moraes, B, Comparat, J, Van Waerbeke, L., Charbonnier, A., Shan, H., Hartley, W., Makler, M., Shan, H, Shan, HY, Joachimi, B., Comparat, J., Leauthaud, A, Hartley, W, Lahav, O., Pereira, MES, Makler, M, Van Waerbeke, L, Pereira, M., Soo, JYH, Lahav, O, Charbonnier, A, Joachimi, B, Soo, J, Soo, J., Erben, T, Moraes, B., Erben, T., Leauthaud, A., Martín Makler, Bruno Moraes, Ludovic Van Waerbeke, Shan, Huanyuan, John Y H Soo, Hartley, William, Johan Comparat, Moraes, Bruno, Pereira, Maria E S, Charbonnier, Aldée, Leauthaud, Alexie, Huanyuan Shan, Benjamin Joachimi, Soo, John Y H, Thomas Erben, Erben, Thomas, Lahav, Ofer, Comparat, Johan, Aldée Charbonnier, Van Waerbeke, Ludovic, William Hartley, Joachimi, Benjamin, Maria E S Pereira, Alexie Leauthaud, Ofer Lahav, Makler, Martín   +53 more
core   +1 more source

Identification of High-redshift Galaxy Overdensities in GOODS-N and GOODS-S

The Astrophysical Journal
We conduct a systematic search for high-redshift galaxy overdensities at 4.9 < z _spec < 8.9 in both the Great Observatories Origins Deep Survey (GOODS)-N and GOODS-S fields using James Webb Space Telescope/Near-Infrared Camera (JWST/NIRCam) imaging from
Jakob M. Helton, Fengwu Sun, Charity Woodrum, Kevin N. Hainline, Christopher N. A. Willmer, Marcia J. Rieke, George H. Rieke, Stacey Alberts, Daniel J. Eisenstein, Sandro Tacchella, Brant Robertson, Benjamin D. Johnson, William M. Baker, Rachana Bhatawdekar, Andrew J. Bunker, Zuyi Chen, Eiichi Egami, Zhiyuan Ji, Roberto Maiolino, Chris Willott, Joris Witstok   +20 more
doaj   +1 more source

Working Group on Galaxy Photometry [PDF]

Transactions of the International Astronomical Union, 1970
1. A tabular presentation has been adopted and the report does not cover work in the U.S.S.R. During the report period Circular No. 6 (Report on Prague Meeting) and a Technical Supplement, No. 6a, were distributed. Work on standard luminosity profiles for a few well-observed galaxies (NGC3115, 3379, 4486) progressed more slowly than expected, but ...
openaire   +1 more source

Variable stars in the dwarf irregular galaxy

, 2005
Deep B, V time-series photometry obtained with the ESO Very Large Telescope has been used to identify variable stars in the dwarf irregular galaxy NGC ...
L. Baldacci, L. Rizzi, G. Clementini, E. V. Held   +3 more
core   +1 more source