Results 11 to 20 of about 80,963 (169)

General Physical Properties of Gamma-Ray-emitting Radio Galaxies

The Astrophysical Journal Supplement Series, 2023
We study the radio galaxies with known redshifts detected by the Fermi satellite after 10 yr of data (4FGL-DR2). We use a one-zone leptonic model to fit the quasi-simultaneous multiwavelength data of these radio galaxies and study the distributions of ...
Yongyun Chen, Qiusheng Gu, Junhui Fan, Xiaoling Yu, Nan Ding, Dingrong Xiong, Xiaotong Guo   +6 more
doaj   +1 more source

Relation Between the Thickness of Stellar Disks and the Relative Mass of Dark Halo in Galaxies [PDF]

, 2002
We consider a thickness of stellar disks of late-type galaxies by analyzing the R and K_s band photometric profiles for two independent samples of edge-on galaxies.
A. V. Khoperskov, A. V. Zasov, A. V. Zasov, A. V. Zasov, A. V. Zasov, D. Barnaby, D. I. Makarov, D. V. Bizyaev, D. V. Bizyaev, E. A. Mikhailova, E. F. Bell, I. D. Karachentsev, I. D. Karachentsev, I. D. Karachentsev, J. Gerssen, J. J. Binney, J. Ma, J. Ma, K. M. Ashman, M. Persic, N. V. Tyurina, P. C. Kruit van der, P. C. Kruit van der, P. W. Hodge, R. B. Tully, R. Bottema, R. Grijs de, R. Grijs de, R. Grijs de, R. Grijs de, R. S. Jong de, S. Cote, S. McGaugh, S. McGaugh, T. X. Thuan, V. L. Polyachenko, V. Reshetnikov, Yu. N. Kudrya   +37 more
core   +2 more sources

Galaxy morphology classification: are stellar circularities enough? [PDF]

Serbian Astronomical Journal
We present a preliminary study exploring whether the stellar orbital circularity of simulated galaxies, available from precomputed catalogs in the IllustrisTNG project, can be used as a proxy for a broad morphological classification. We focus on
Baucalo Katarina, Mitrašinović Ana
doaj   +1 more source

Translators of Galaxy Morphology Indicators between Observation and Simulation

The Astrophysical Journal, 2023
Based on the recent advancements in numerical simulations of galaxy formation, we anticipate the achievement of realistic models of galaxies in the near future.
J. K. Jang, Sukyoung K. Yi, Yohan Dubois, Jinsu Rhee, Christophe Pichon, Taysun Kimm, Julien Devriendt, Marta Volonteri, Sugata Kaviraj, Sebastien Peirani, Sree Oh, Scott Croom   +11 more
doaj   +1 more source

Composite Bulges. III. A Study of Nuclear Star Clusters in Nearby Spiral Galaxies

The Astrophysical Journal, 2023
We present photometric and morphological analyses of nuclear star clusters (NSCs)—very dense, massive star clusters present in the central regions of most galaxies—in a sample of 33 massive disk galaxies within 20 Mpc, part of the “Composite Bulges ...
Aishwarya Ashok, Anil Seth, Peter Erwin, Victor P. Debattista, Adriana de Lorenzo-Cáceres, Dmitri A. Gadotti, Jairo Méndez-Abreu, John E. Beckman, Ralf Bender, Niv Drory, Deanne Fisher, Ulrich Hopp, Matthias Kluge, Tutku Kolcu, Witold Maciejewski, Kianusch Mehrgan, Taniya Parikh, Roberto Saglia, Marja Seidel, Jens Thomas   +19 more
doaj   +1 more source

Planetary Nebulae and the Ionization of the Interstellar Medium in Galaxies

Frontiers in Astronomy and Space Sciences, 2022
We discuss the role of planetary nebulae and their progeny in galaxy context in terms of ionization of the galaxy interstellar medium. This regards ionized gas outside the disk of spiral galaxies, the diffuse ionized medium in spiral galaxies, and the ...
Grażyna Stasińska, Marina Trevisan, Natalia Vale Asari   +2 more
doaj   +1 more source

Kinematic Modeling of Distant Galaxies

Open Astronomy, 2012
Evolution of galaxies is one of the most actual topics in astrophysics. Among the most important factors determining the evolution are two galactic components which are difficult or even impossible to detect optically: the gaseous disks and the dark ...
Kipper Rain, Tempel Elmo, Tamm Antti
doaj   +1 more source

Astrophysically Motivated Bulge-Disk Decompositions of SDSS Galaxies [PDF]

, 2012
We present a set of bulge-disk decompositions for a sample of 71,825 SDSS main-sample galaxies in the redshift range 0 ...
Abazajian, Aihara, Allen, Athanassoula, Balcells, Baldry, Bamford, Bell, Benson, Bernardi, Bernardi, Blanton, Blanton, Blanton, Blanton, Bundy, Bundy, Burstein, C. N. Lackner, Cameron, Caon, Capaccioli, de Jong, de Souza, de Vaucouleurs, de Vaucouleurs, Driver, Driver, Driver, Drory, Eggen, Elmegreen, Falcón-Barroso, Fathi, Fisher, Fisher, Franx, Freeman, Gadotti, Gadotti, Gonzalez, Graham, Graham, Guo, Hao, Hao, Hubble, J. E. Gunn, Jarrett, Kauffmann, Kent, Kent, Kormendy, Kormendy, Kormendy, Kregel, Lauer, Laurikainen, Lima, Liske, Lupton, MacArthur, Maller, Mandelbaum, Markwardt, Masters, Mendez, Moorthy, Noguchi, Padmanabhan, Peletier, Peletier, Peng, Sandage, Schawinski, Shao, Simard, Simard, Simmons, Strateva, Sérsic, Trujillo, Tully, van den, Weinzirl, Wyse   +85 more
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Surface Photometry of Spiral Galaxy NGC 5005 and Elliptical Galaxy NGC 4278

مجلة بغداد للعلوم, 2018
Two galaxies have been chosen, spiral galaxy NGC 5005 and elliptical galaxy NGC 4278 to study their photometric properties by using surface photometric techniques with griz-Filters. Observations are obtained from the Sloan Digital Sky Survey (SDSS).
Baghdad Science Journal
doaj   +1 more source

Star formation in bulgeless late type galaxies: clues to their evolution

, 2012
We present GMRT 1280 MHz radio continuum observations and follow-up optical studies of the disk and nuclear star formation in a sample of low luminosity bulgeless galaxies. The main aim is to understand bulge formation and overall disk evolution in these
Baggett, Banerjee, Bell, Boissier, Boselli, Brook, Brook, Böker, Böker, Böker, Böker, C. Sengupta, Cao, Combes, Daddi, Das, de Blok, D’Onghia, Ferrarese, Filippenko, Filippenko, Ganda, Gebhardt, Gil de Paz, Gil de Paz, Gliozzi, Governato, Gültekin, Heckman, James, K. Misra, Karachentsev, Kautsch, Kennicutt, Kinney, Kormendy, Kormendy, Kormendy, Kormendy, Kormendy, M. Das, Martinez-Valpuesta, Matthews, McAlpine, Neumayer, Oke, Peterson, Phookun, Pilyugin, Popescu, Raha, Ramya, Ravindranath, Roussel, S. Ramya, Salucci, Satyapal, Satyapal, Sellwood, Seth, Shields, Silk, Smith, Smith, Swarup, Walcher, Waller, Watson, White, Young, Zackrisson   +70 more
core   +1 more source