Results 51 to 60 of about 765,605 (153)

Charged Particles Moving around a Spherically Symmetric Dilatonic Black Hole

Advances in High Energy Physics, Volume 2024, Issue 1, 2024.
For the static spherically symmetric dilatonic black hole described by the Gibbons–Maeda–Garfinkle–Horowitz–Strominger geometry, we analyze the timelike trajectories for electrically charged test particles. Both cases of an electric black hole and a magnetic one are considered.
Vitalie Lungu, Marina–Aura Dariescu, Ciprian Dariescu, Cristian Stelea, Muhammad Farasat Shamir   +4 more
wiley   +1 more source

A quasar-galaxy merger at [PDF]

We present JWST/NIRSpec integral field spectroscopy in the rest-frame optical bands of the system PJ308–21, a quasar at z = 6.2342 caught as its host galaxy interacts with companion galaxies.
Alessandro Lupi, Schindler, J., Yang, J., Eilers, A.-C., Loiacono, F., Eduardo Bañados, Riechers, D.A., Fabian Walter, Jun, Hyunsung D., Lupi, Alessandro, Blecha, Laura, Zhang, H., Eilers, A., Gilli, Roberto, Carilli, C.L., Fan, X., Marcel Neeleman, Carilli, Chris L., Connor, T., Zou, Siwei, Volonteri, M., Gilli, R., Emanuele Paolo Farina, Weizhe Liu, Onoue, M., Feige Wang, Mignoli, M., Jan-Torge Schindler, Marshall, M., Costa, Tiago, Liu, Weizhe, Andrea Comastri, Masafusa Onoue, Julien Wolf, Meyer, R.A., Trakhtenbrot, Benny, Comastri, A., Rix, H., Connor, Thomas, Maxime Trebitsch, Eilers, Anna Christina, Blecha, L., Venemans, B.P., Overzier, Roderik, Tiago Costa, Meyer, R., Meyer, Romain A., Walter, F., Pensabene, A., Eilers, Anna-christina, Laura Blecha, Roberto Gilli, Vestergaard, Marianne, Volonteri, Marta, Strauss, M.A., Wolf, J., Anna-Christina Eilers, Comastri, Andrea, Trebitsch, Maxime, Jun, H., Bram Venemans, Federica Loiacono, Loiacono, Federica, Rix, Hans Walter, Bañados, Eduardo, Riechers, D., Trakhtenbrot, B., Bañados, E., Hyunsung D. Jun, Overzier, R., Yang, Jinyi, Strauss, M., Siwei Zou, Vestergaard, M., Wang, F., Venemans, B., Zou, S., Mazzucchelli, C., Trebitsch, M., Zhang, Huanian, Dotti, Massimo, Wang, Feige, Onoue, Masafusa, Rix, Hans-walter, Farina, E.P., Fan, Xiaohui, Mazzucchelli, Chiara, Wolf, Julien, Marshall, Madeline A., Carilli, C., Marta Volonteri, Benny Trakhtenbrot, Dotti, M., Xiaohui Fan, Schindler, J.-T., Madeline A. Marshall, Marco Mignoli, Liu, W., Chris L. Carilli, Romain A. Meyer, Mignoli, Marco, Neeleman, M., Thomas Connor, Pudoka, M.A., Michael A. Strauss, Costa, T., Rix, H.-W., Riechers, Dominik A., Neeleman, Marcel, Pudoka, M., Marianne Vestergaard, Decarli, R., Dominik A. Riechers, Bosman, S., Farina, E., Jinyi Yang, Walter, Fabian, Sarah Bosman, Decarli, Roberto, Antonio Pensabene, Marshall, M.A., Schindler, Jan Torge, Farina, Emanuele Paolo, Pudoka, Maria Anne, Bosman, Sarah, Schindler, Jan-torge, Strauss, Michael A., Lupi, A., Massimo Dotti, Roderik Overzier, Venemans, Bram, Chiara Mazzucchelli, Maria Anne Pudoka, Huanian Zhang, Meyer, Romain, Roberto Decarli, Hans-Walter Rix, Pensabene, Antonio, Jun, H.D., Farina E. P., Vestergaard M., Mazzucchelli C., Rix H. -W., Yang J., Venemans B., Marshall M. A., Walter F., Neeleman M., Blecha L., Strauss M. A., Volonteri M., Comastri A., Eilers A. -C., Wolf J., Mignoli M., Costa T., Overzier R., Gilli R., Zou S., Riechers D. A., Decarli R., Connor T., Pudoka M. A., Jun H. D., Dotti M., Onoue M., Meyer R. A., Wang F., Trakhtenbrot B., Zhang H., Lupi A., Schindler J. -T., Pensabene A., Bosman S., Fan X., Banados E., Liu W., Trebitsch M., Loiacono F., Carilli C. L.   +179 more
core   +3 more sources

Probing Dark Matter Halos of High-redshift Quasars via Wide-field Clustering

The Astrophysical Journal Letters
High-redshift quasars are powerful tracers of both astrophysical processes and large-scale structure in the early Universe. Using a sample of 1242 spectroscopically confirmed quasars and 827 highly reliable photometric quasar candidates selected with a ...
Hao Meng, Guangping Ye, Huanian Zhang
doaj   +1 more source

Quasar and galaxy classification using Gaia EDR3 and CatWise2020 [PDF]

, 2022
In this work, we assess the combined use of Gaia photometry and astrometry with infrared data from CatWISE in improving the identification of extragalactic sources compared to the classification obtained using Gaia data.
Bailer-Jones, Coryn A. L., Arvind C. N. Hughes, Sara Jamal, Jamal, Sara, Hughes, Arvind C. N., Coryn A. L. Bailer-Jones   +5 more
core   +1 more source

UEG Week 2022 Oral Presentations

, 2022
United European Gastroenterology Journal, Volume 10, Issue S8, Page 9-184, October 2022.
wiley   +1 more source

Low-velocity Precessing Jets Can Explain Observed Morphologies in the Twin Radio Galaxy TRG J104454+354055

The Astrophysical Journal
Our understanding of large-scale radio jets in merger systems has been drastically improved in the era of the Very Large Array, Very Long Baseline Array/European VLBI Network, upgraded Giant Metrewave Radio Telescope, and MeerKAT.
Santanu Mondal, Gourab Giri, Ravi Joshi, Paul J. Wiita, Gopal-Krishna, Luis C. Ho   +5 more
doaj   +1 more source

Cosmic Chance Superpositions: Largest Catalog of Quasar-galaxy Pairs at a Projected Separation of D ≲ 20 kpc

The Astrophysical Journal
We present the largest catalogue to date of Galaxies On Top Of Quasars (GOTOQs)—systems where the sight line to a background quasar passes directly through or very close to a foreground galaxy.
Labanya K. Guha, Raghunathan Srianand, Rajeshwari Dutta   +2 more
doaj   +1 more source

Discovery of a bright quasar without a massive host galaxy

, 2005
peer reviewedA quasar is thought to be powered by the infall of matter onto a supermassive black hole at the centre of a massive galaxy(1,2). Because the optical luminosity of quasars exceeds that of their host galaxy, disentangling the two components ...
Wisotzki, L., Jahnke, K., Knud Jahnke, Jablonka, P., Géraldine Letawe, Letawe, Géraldine, Lutz Wisotzki, Courbin, F., Pascale Jablonka, Magain, Pierre, Pierre Magain, Meylan, G., Georges Meylan, Frédéric Courbin   +13 more
core   +1 more source

The VST ATLAS Quasar Survey II: Halo mass profiles of galaxies, LRGs and galaxy clusters via quasar and CMB lensing [PDF]

We cross-correlate a low-contamination subset of the VST ATLAS g < 22.5 quasar catalogue with g < 21.5 galaxy clusters, r < 21 galaxies and r < 19.5 Luminous Red Galaxies (LRGs) to probe their halo mass profiles via quasar magnification bias caused by ...
Murph, D. N. A., Metcalfe, 1 N., Shanks, T., Barrientos, L. F., Ansarinejad, B., Eltvedt, Alice M., Alexander, D. M.   +6 more
core   +4 more sources

Varstrometry for Off-nucleus and Dual Sub-Kpc AGN (VODKA): A Mix of Singles, Lenses, and True Duals at Cosmic Noon

The Astrophysical Journal
Dual active galactic nuclei (AGNs), a phase in some galaxy mergers during which both central supermassive black holes (SMBHs) are active, are expected to be a key observable stage leading up to SMBH mergers.
Arran C. Gross, Yu-Ching Chen, Masamune Oguri, Liam Nolan, Xin Liu, Yue Shen, Ming-Yang Zhuang, Junyao Li, Nadia L. Zakamska, Hsiang-Chih Hwang, Yuzo Ishikawa   +10 more
doaj   +1 more source