Zobrazeno 1 - 10
of 21 194
pro vyhledávání: '"Secrest A"'
Galaxy mergers represent the most transformative and dramatic avenue for galaxy and supermassive black hole (SMBH) evolution. Multi-active galactic nuclei (multi-AGNs) are expected to ignite, grow, and evolve alongside the host galaxies, and these re
Externí odkaz:
http://arxiv.org/abs/2411.12799
Autor:
VARGO, LAUREN J.1, WILES, GREGORY2 gwiles@wooster.edu, WIESENBERG, NICHOLAS2, WILLIAMS, CHRISTOPHER J.3, COCHRAN, KEN4
Publikováno v:
Ohio Journal of Science. 2020, Vol. 120 Issue 2, p22-29. 8p.
Kaniadakis deformed \kappa-mathematics is an area of mathematics that has found relevance in the analysis of complex systems. Specifically, the mathematical framework in the context of a first-order decay \kappa-differential equation is investigated,
Externí odkaz:
http://arxiv.org/abs/2409.16372
Autor:
Doan, Sara, Satyapal, Shobita, Matzko, William, Abel, Nicholas P., Böker, Torsten, Bohn, Thomas, Canalizo, Gabriela, Cann, Jenna M., Fischer, Jacqueline, LaMassa, Stephanie, Madden, Suzanne C., McKaig, Jeffrey D., Schaerer, D., Secrest, Nathan J., Seth, Anil, Blecha, Laura, Molina, Mallory, Rothberg, Barry
Local low metallicity galaxies with signatures of possible accretion activity are ideal laboratories in which to search for the lowest mass black holes and study their impact on the host galaxy. Here we present the first JWST NIRSpec IFS observations
Externí odkaz:
http://arxiv.org/abs/2408.04774
Autor:
Cigan, Phil, Makarov, Valeri, Secrest, Nathan, Gordon, David, Johnson, Megan, Lambert, Sebastien
Using very long baseline interferometry data for the sources that comprise the third International Celestial Reference Frame (ICRF3), we examine the quality of the formal source position uncertainties of ICRF3 by determining the excess astrometric va
Externí odkaz:
http://arxiv.org/abs/2408.01373
Detecting active black holes in dwarf galaxies has proven to be a challenge due to their small size and weak electromagnetic signatures. Mid-infrared variability has emerged as a promising tool that can be used to detect active low-mass black holes i
Externí odkaz:
http://arxiv.org/abs/2408.00666
Autor:
Brady, Barbara
Publikováno v:
Metalsmith. Spring2004, Vol. 24 Issue 2, p41-47. 7p. 10 Color Photographs.
Autor:
Shuvo, Onic I., Johnson, Megan C., Secrest, Nathan J., Gliozzi, Mario, Cigan, Phillip J., Fischer, Travis C., Van Der Horst, Alexander J.
We present results from the Very Long Baseline Array (VLBA) multi-frequency (1.6, 4.4, 8.6, 22 GHz), high-sensitivity (~25 microJy beam^-1), sub-parsec scale (<1 pc) observations and Spectral Energy Distributions (SEDs) for a sample of 12 local activ
Externí odkaz:
http://arxiv.org/abs/2312.04452
Using the Very Long Baseline Array, we observed the active galactic nucleus (AGN) in NGC 3079 over a span of six months to test for variability in the two main parsec-scale radio components, $A$ and $B$, which lie on either side of the AGN. We found
Externí odkaz:
http://arxiv.org/abs/2310.03019
Autor:
Cann, Jenna M., Weaver, Kimberly A., Pfeifle, Ryan W., Secrest, Nathan J., Satyapal, Shobita, Gliozzi, Mario
One of the primary outstanding questions in extragalactic astronomy is the formation and early evolution of the supermassive black holes that are seen in nearly every massive galaxy. Low metallicity dwarf galaxies may offer the most representative lo
Externí odkaz:
http://arxiv.org/abs/2310.02999