Results 71 to 80 of about 1,065 (171)

USING THE METHODS OF WAVELET ANALYSIS AND SINGULAR SPECTRUM ANALYSIS IN THE STUDY OF RADIO SOURCE BL LAC

Odessa Astronomical Publications, 2014
We investigated the monitoring data of extragalactic source BL Lac. This monitoring was held withUniversityofMichigan26-meter radio  telescope. To study flux density of extragalactic source BL Lac at frequencies of 14.5, 8 and 4.8 GHz, the wavelet ...
G. I. Donskykh, M. I. Ryabov, A. I. Sukharev, M. Aller   +3 more
doaj   +1 more source

Radial Profiles of Σ*, ΣSFR, Gas Metallicity, and Their Correlations across the Galactic Mass–Size Plane

The Astrophysical Journal
We analyzed the global and resolved properties of approximately 1240 nearby star-forming galaxies from the MaNGA survey, comparing compact and extended galaxies—those with smaller and larger radii ( R _e ), respectively—at a fixed stellar mass ( M _ ...
Lin Lin, Shiyin Shen, Hassen M. Yesuf, Ye-Wei Mao, Lei Hao   +4 more
doaj   +1 more source

New Synoptic Observations of the Cosmic Optical Background with New Horizons

The Astrophysical Journal
We obtained New Horizons LORRI images to measure the cosmic optical background (COB) intensity integrated over 0.4 μ m ≲ λ ≲ 0.9 μ m. The survey comprises 16 high-Galactic-latitude fields selected to minimize scattered diffuse Galactic light (DGL) from ...
Marc Postman, Tod R. Lauer, Joel W. Parker, John R. Spencer, Harold A. Weaver, J. Michael Shull, S. Alan Stern, Pontus Brandt, Steven J. Conard, G. Randall Gladstone, Carey M. Lisse, Simon B. Porter, Kelsi N. Singer, Anne. J. Verbiscer   +13 more
doaj   +1 more source

EPOCHS. I. The Discovery and Star-forming Properties of Galaxies in the Epoch of Reionization at 6.5 < z < 18 with PEARLS and Public JWST Data

The Astrophysical Journal
We present in this paper the discovery, properties, and a catalog of 1165 high-redshift 6.5  12 in our sample and describe their properties. Finally, we note a significant observed excess of galaxies compared to models at z  > 12, revealing a tension ...
Christopher J. Conselice, Nathan Adams, Thomas Harvey, Duncan Austin, Leonardo Ferreira, Katherine Ormerod, Qiao Duan, James Trussler, Qiong Li, Ignas Juodžbalis, Lewi Westcott, Honor Harris, Louise T. C. Seeyave, Asa F. L. Bluck, Rogier A. Windhorst, Rachana Bhatawdekar, Dan Coe, Seth H. Cohen, Cheng Cheng, Simon P. Driver, Brenda Frye, Lukas J. Furtak, Norman A. Grogin, Nimish P. Hathi, Benne W. Holwerda, Rolf A. Jansen, Anton M. Koekemoer, Madeline A. Marshall, Mario Nonino, Aaron Robotham, Jake Summers, Stephen M. Wilkins, Christopher N. A. Willmer, Haojing Yan, Adi Zitrin   +34 more
doaj   +1 more source

The JADES Origins Field: A New JWST Deep Field in the JADES Second NIRCam Data Release

The Astrophysical Journal Supplement Series
We summarize the properties and initial data release of the JADES Origins Field (JOF), the longest single pointing yet imaged with the James Webb Space Telescope (JWST).
Daniel J. Eisenstein, Benjamin D. Johnson, Brant Robertson, Sandro Tacchella, Kevin Hainline, Peter Jakobsen, Roberto Maiolino, Nina Bonaventura, Andrew J. Bunker, Alex J. Cameron, Phillip A. Cargile, Emma Curtis-Lake, Ryan Hausen, Dávid Puskás, Marcia Rieke, Fengwu Sun, Christopher N. A. Willmer, Chris Willott, Stacey Alberts, Santiago Arribas, William M. Baker, Stefi Baum, Rachana Bhatawdekar, Stefano Carniani, Stephane Charlot, Zuyi Chen, Jacopo Chevallard, Mirko Curti, Christa DeCoursey, Francesco D’Eugenio, Anna de Graaff, Eiichi Egami, Jakob M. Helton, Zhiyuan Ji, Gareth C. Jones, Nimisha Kumari, Nora Lützgendorf, Isaac Laseter, Tobias J. Looser, Jianwei Lyu, Michael V. Maseda, Erica Nelson, Eleonora Parlanti, Bernard J. Rauscher, Tim Rawle, George Rieke, Hans-Walter Rix, Wiphu Rujopakarn, Lester Sandles, Aayush Saxena, Jan Scholtz, Katherine Sharpe, Irene Shivaei, Charlotte Simmonds, Renske Smit, Michael W. Topping, Hannah Übler, Giacomo Venturi, Christina C. Williams, Joris Witstok, Charity Woodrum   +60 more
doaj   +1 more source

Mapping the Galaxy Color–Star Formation Rate Relation with Manifold Learning and Infrared Image Stacking

The Astrophysical Journal
Modern surveys present us with billions of faint galaxies for which we only have broadband images in ∼6–8 optical-to-near-infrared (NIR) filters. Galaxy star formation rates (SFRs) are difficult to estimate accurately without spectroscopic diagnostics or
Yu-Heng Lin, Daniel Masters, Andreas L. Faisst, Harry Teplitz, Olivier Ilbert, Matthieu Bethermin, Shoubaneh Hemmati, Vihang Mehta, Jason D. Rhodes, Gregory L. Walth   +9 more
doaj   +1 more source

Open Questions in Cosmic-Ray Research at Ultrahigh Energies

Frontiers in Astronomy and Space Sciences, 2019
We review open questions and prospects for progress in ultrahigh-energy cosmic ray (UHECR) research, based on a series of discussions that took place during the “The High-Energy Universe: Gamma-Ray, Neutrino, and Cosmic-ray Astronomy” MIAPP workshop in ...
Rafael Alves Batista, Jonathan Biteau, Mauricio Bustamante, Klaus Dolag, Klaus Dolag, Ralph Engel, Ke Fang, Karl-Heinz Kampert, Dmitriy Kostunin, Miguel Mostafa, Kohta Murase, Kohta Murase, Foteini Oikonomou, Angela V. Olinto, Mikhail I. Panasyuk, Guenter Sigl, Andrew M. Taylor, Michael Unger   +17 more
doaj   +1 more source

Multi-wavelength extragalactic astronomy at Ghent University

Bulletin de la Société Royale des Sciences de Liège, 2019
Galaxies are generally considered as the basic building blocks of the Universe. Besides stars, galaxies also contain a supermassive black hole, a dark matter halo, and a multi-phase interstellar medium that consists of molecules, atoms, ions, and dust grains.
Baes, Maarten, Camps, Peter, De Looze, Ilse, Viaene, Sébastien   +3 more
openaire   +2 more sources

Virgo Filaments. IV. Using WISE to Measure the Modification of Star-forming Disks in the Extended Regions Around the Virgo Cluster

The Astrophysical Journal
Recent theoretical work and targeted observational studies suggest that filaments are sites of galaxy preprocessing. The aim of the WISESize project is to directly probe galaxies over the full range of environments to quantify and characterize extrinsic ...
Kim Conger, Gregory Rudnick, Rose A. Finn, Gianluca Castignani, John Moustakas, Benedetta Vulcani, Daria Zakharova, Lizhi Xie, Francoise Combes, Pascale Jablonka, Yannick Bahé, Gabriella De Lucia, Vandana Desai, Rebecca A. Koopmann, Dara Norman, Melinda Townsend, Dennis Zaritsky   +16 more
doaj   +1 more source

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source