Results 91 to 100 of about 698 (182)

The Perpendicularity of Dust Lanes and Radio Jets in Early-type Galaxies: Implications for Active Galactic Nuclei Feedback

The Astrophysical Journal
The orientation of radio jets relative to their host galaxies offers an interesting avenue for probing the connection between active galactic nuclei (AGN) and their surroundings.
Emma Jane Weller, Pieter van Dokkum
doaj   +1 more source

Unlocking AGN variability with custom ZTF photometry for high-fidelity light curves and robust selection

Astronomy & Astrophysics
Aims. We explored the potential of optical variability selection methods in order to identify a broad range of active galactic nuclei (AGN), including those challenging to detect with conventional techniques. Using the unprecedented combination of depth,
Arévalo P., Sánchez-Sáez P., Sotomayor B., Lira P., Bauer F. E., Ríos S.   +5 more
doaj   +1 more source

Colors of AGN host galaxies at 0.5

, 2016
We present the results from a study of the host galaxies of 15 optically selected AGNs with 0 ...
Sanchez, S, Jahnke, K, Wisotzki, L, McIntosh, D, Bell, E, Barden, M, Beckwith, S, Borch, A, Caldwell, J, Haeussler, B, Jogee, S, Meisenheimer, K, Peng, C, Rix, H, Somerville, R, Wolf, C, collaboration, FTGEMS   +16 more
openaire   +1 more source

ALMA/SCUBA-2 COSMOS Survey: Properties of X-Ray- and SED-selected Active Galactic Nuclei in Bright Submillimeter Galaxies

The Astrophysical Journal
We investigate the properties of active galactic nuclei (AGNs) in the brightest submillimeter galaxies (SMGs) in the COSMOS field. We utilize the bright sample of the ALMA/SCUBA-2 COSMOS Survey (AS2COSMOS), which consists of 260 SMGs with S _870 _μ _m  = 
Ryosuke Uematsu, Yoshihiro Ueda, David M. Alexander, A. M. Swinbank, Ian Smail, Carolina Andonie, Chian-Chou Chen, Ugne Dudzevičiūtė, Soh Ikarashi, Kotaro Kohno, Yuichi Matsuda, Annagrazia Puglisi, Hideki Umehata, Wei-Hao Wang   +13 more
doaj   +1 more source

Investigating the Star Formation Characteristics of Radio Active Galactic Nuclei

The Astrophysical Journal
The coevolution of supermassive black holes and their host galaxies represents a fundamental question in astrophysics. One approach to investigating this question involves comparing the star formation rates (SFRs) of active galactic nuclei (AGNs) with ...
Bojun Zhang, Fan Zou, W. N. Brandt, Shifu Zhu, Nathan Cristello, Qingling Ni, Yongquan Xue, Zhibo Yu   +7 more
doaj   +1 more source

Optical surveys of AGN and their host galaxies

, 2013
This thesis rests on two large Active Galactic Nuclei (AGNs) surveys. The first survey deals with galaxies that host low-level AGNs (LLAGN) and aims at identifying such galaxies by quantifying their variability. While numerous studies have shown that AGNs can be variable at all wavelengths, the nature of the variability is still not well understood ...
openaire   +2 more sources

The Role of Active Galactic Nucleus Winds in Galaxy Formation: Connecting AGN Outflows at Low Redshifts to the Formation/Evolution of Their Host Galaxies

The Astronomical Journal
Using Sloan Digital Sky Survey (SDSS) spectra, we applied an automatic method to search for outflows (OFs) in three large samples of narrow-line active galactic nuclei (AGN) at low redshifts ( z < 0.4), separated into three spectral activity classes ...
Juan Pablo Torres-Papaqui, Roger Coziol, Aitor C. Robleto-Orús, Karla A. Cutiva-Alvarez, Paulina Roco-Avilez   +4 more
doaj   +1 more source

Extragalactic Science with the Orbiting Astronomical Satellite Investigating Stellar Systems (OASIS) Observatory. [PDF]

Space Sci Rev, 2023
Aalto S, Battersby C, Chin G, Hunt LK, Rigopoulou D, Stark AA, Viti S, Walker CK.   +7 more
europepmc   +1 more source

Extreme properties of a compact and massive accreting black hole host in the first 500 Myr. [PDF]

Nat Commun
Tripodi R, Martis N, Markov V, Bradač M, Di Mascia F, Cammelli V, D'Eugenio F, Willott C, Curti M, Bhatt M, Gallerani S, Rihtaršič G, Singh J, Gaspar G, Harshan A, Judež J, Merida RM, Desprez G, Sawicki M, Goovaerts I, Muzzin A, Noirot G, Sarrouh GTE, Abraham R, Asada Y, Brammer G, Estrada-Carpenter V, Felicioni G, Fujimoto S, Iyer K, Mowla L, Strait V.   +31 more
europepmc   +1 more source

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source