Zobrazeno 1 - 10
of 1 635
pro vyhledávání: '"Hickox A"'
Autor:
Perrotta, Serena, Coil, Alison L., Rupke, David S. N., Ning, Wenmeng, Duong, Brendan, Diamond-Stanic, Aleksandar M., Fielding, Drummond B., Geach, James E., Hickox, Ryan C., Moustakas, John, Rudnick, Gregory H., Sell, Paul H., Swiggum, Cameren N., Tremonti, Christy A.
High-velocity outflows are ubiquitous in compact, massive (M$_* \sim$ 10$^{11}$ M$_{\odot}$), z $\sim$ 0.5 galaxies with extreme star formation surface densities ($\Sigma_{SFR} \sim$ 2000 M$_{\odot}$ yr$^{-1}$ kpc$^{-2}$). We have previously detected
Externí odkaz:
http://arxiv.org/abs/2409.10013
Autor:
Rosado, Rodrigo Córdova, Goulding, Andy D., Greene, Jenny E., Petter, Grayson C., Hickox, Ryan C., Kokron, Nickolas, Strauss, Michael A., Givans, Jahmour J., Toba, Yoshiki, Henderson, Cassandra Starr
Active galactic nuclei (AGN) are the signposts of black hole growth, and likely play an important role in galaxy evolution. An outstanding question is whether AGN of different spectral types indicate different evolutionary stages in the coevolution o
Externí odkaz:
http://arxiv.org/abs/2409.08314
Autor:
Guetzoyan, Paloma, Aird, James, Georgakakis, Antonis, Coil, Alison L., Barlow-Hall, Cassandra, Hickox, Ryan C., Rankine, Amy L., Terrazas, Bryan A.
Supermassive Black Holes (BHs) are known to efficiently grow through gas accretion, but even sustained and intense mass build-up through this mechanism struggles to explain the assembly of the most massive BHs observed in the local Universe. Using th
Externí odkaz:
http://arxiv.org/abs/2408.14297
Coupling between relativistic jets launched by accreting supermassive black holes and the surrounding gaseous media is a vital ingredient in galaxy evolution models. To constrain the environments in which this feedback takes place over cosmic time, w
Externí odkaz:
http://arxiv.org/abs/2407.18744
Autor:
Podjed, Stephanie A., Hickox, Ryan C., Isler, Jedidah C., Böttcher, Markus, Schutte, Hester M.
Publikováno v:
ApJ 968 (2024) 130 (12pp)
Spectropolarimetry is a powerful tool to investigate the central regions of active galactic nuclei (AGNs) as polarization signatures are key to probing magnetic field structure, evolution, and the physics of particle acceleration in jets. Optical lin
Externí odkaz:
http://arxiv.org/abs/2406.17687
JWST is revolutionizing our view of the early Universe by pushing the boundaries of detectable galaxies and black holes in redshift (upward) and mass (downward). The Little Red Dots (LRDs), detected by several surveys at $z > 4$, present a significan
Externí odkaz:
http://arxiv.org/abs/2406.10329
Autor:
Ananna, Tonima Tasnim, Bogdán, Ákos, Kovács, Orsolya E., Natarajan, Priyamvada, Hickox, Ryan C.
The discovery of Little Red Dots (LRDs) -- a population of compact, high-redshift, dust-reddened galaxies -- is one of the most surprising results from JWST. However, the nature of LRDs is still debated: does the near-infrared emission originate from
Externí odkaz:
http://arxiv.org/abs/2404.19010
Autor:
Greenwell, Claire L., Klindt, Lizelke, Lansbury, George B., Rosario, David J., Alexander, David M., Aird, James, Stern, Daniel, Forster, Karl, Koss, Michael J., Bauer, Franz E., Ricci, Claudio, Tomsick, John, Brandt, William N., Connor, Thomas, Boorman, Peter G., Annuar, Adlyka, Ballantyne, David R., Chen, Chien-Ting, Civano, Francesca, Comastri, Andrea, Fawcett, Victoria A., Fornasini, Francesca M., Gandhi, Poshak, Harrison, Fiona, Heida, Marianne, Hickox, Ryan, Kammoun, Elias S., Lanz, Lauranne, Marchesi, Stefano, Noirot, Gaël, Romero-Colmenero, Encarni, Treister, Ezequiel, Urry, C. Megan, Väisänen, Petri, van Soelen, Brian
We present a catalog of hard X-ray serendipitous sources detected in the first 80 months of observations by the Nuclear Spectroscopic Telescope Array (NuSTAR). The NuSTAR serendipitous survey 80-month (NSS80) catalog has an unprecedented $\sim$ 62 Ms
Externí odkaz:
http://arxiv.org/abs/2404.17637
Autor:
Sanderson, Robyn E., Hickox, Ryan, Hirata, Christopher M., Holman, Matthew J., Lu, Jessica R., Villar, Ashley
The Nancy Grace Roman Space Telescope (Roman), NASA's next flagship observatory, has significant mission time to be spent on surveys for general astrophysics in addition to its three core community surveys. We considered what types of observations ou
Externí odkaz:
http://arxiv.org/abs/2404.14342
Autor:
Laloux, Brivael, Georgakakis, Antonis, Alexander, David M., Buchner, Johannes, Andonie, Carolina, Acharya, Nischal, Aird, James, Alonso-Tetilla, Alba V., Bongiorno, Angela, Hickox, Ryan C., Lapi, Andrea, Musiimenta, Blessing, Almeida, Cristina Ramos, Villforth, Carolin, Shankar, Francesco
Publikováno v:
MNRAS 532 (2024) 3459-3479
We adopt a Bayesian X-ray spectral approach to investigate the accretion properties of unobscured ($20<\log(N_{\rm H}/{\rm cm}^{-2}<22$) and obscured ($22< \log(N_{\rm H}/{\rm cm}^{-2}<24$) active galactic nuclei (AGN) to shed light on the orientatio
Externí odkaz:
http://arxiv.org/abs/2403.07109