Zobrazeno 11 - 20
of 222
pro vyhledávání: '"Nyland, Kristina"'
Autor:
Lanz, Lauranne, Stepanoff, Sofia, Hickox, Ryan C., Alatalo, Katherine, French, K. Decker, Rowlands, Kate, Nyland, Kristina, Appleton, Phil, Lacy, Mark, Medling, Anne, Mulchaey, John S., Sazonova, Elizaveta, Urry, Claudia Megan
We present an analysis of 10 ks snapshot Chandra observations of 12 shocked post-starburst galaxies, which provide a window into the unresolved question of active galactic nuclei (AGN) activity in post-starburst galaxies and its role in the transitio
Externí odkaz:
http://arxiv.org/abs/2207.00607
Publikováno v:
The Astrophysical Journal, Volume 934, Issue 1, id.89, 8 pp. (2022)
Kpc-scale triple active galactic nuclei (AGNs), potential precursors of gravitationally-bound triple massive black holes (MBHs), are rarely seen objects and believed to play an important role in the evolution of MBHs and their host galaxies. In this
Externí odkaz:
http://arxiv.org/abs/2206.14705
Autor:
Yang, Jun, Yang, Xiaolong, Wrobel, Joan M., Paragi, Zsolt, Gurvits, Leonid I., Ho, Luis C., Nyland, Kristina, Fan, Lulu, Tafoya, Daniel
NGC 4395 is a dwarf galaxy at a distance of about 4.3 Mpc (scale: ~0.021 pc mas$^{-1}$). It hosts an intermediate-mass black hole (IMBH) with a mass between ~10$^4$ and ~10$^5$ solar masses. The early radio observations of NGC 4395 with the very long
Externí odkaz:
http://arxiv.org/abs/2206.10964
Autor:
Zou, Fan, Brandt, W. N., Chen, Chien-Ting, Leja, Joel, Ni, Qingling, Yan, Wei, Yang, Guang, Zhu, Shifu, Luo, Bin, Nyland, Kristina, Vito, Fabio, Xue, Yongquan
W-CDF-S, ELAIS-S1, and XMM-LSS will be three Deep-Drilling Fields (DDFs) of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), but their extensive multi-wavelength data have not been fully utilized as done in the COSMOS field, anot
Externí odkaz:
http://arxiv.org/abs/2206.06432
Autor:
Patil, Pallavi, Whittle, Mark, Nyland, Kristina, Lonsdale, Carol, Lacy, Mark, Kimball, Amy E., Lonsdale, Colin, Peters, Wendy, Clarke, Tracy E., Efstathiou, Andreas, Giacintucci, Simona, Kim, Minjin, Lanz, Lauranne, Mukherjee, Dipanjan, Polisensky, Emil
We present radio spectra spanning $0.1 - 10$ GHz for the sample of heavily obscured luminous quasars with extremely red mid-infrared-optical colors and compact radio emission. The spectra are constructed from targeted 10 GHz observations and archival
Externí odkaz:
http://arxiv.org/abs/2201.07349
Autor:
Runburg, Jack, Farrah, Duncan, Sajina, Anna, Lacy, Mark, Lidua, Jenna, Hatziminaoglou, Evanthia, Brandt, W. N., Chen, Chien-Ting J., Nyland, Kristina, Shirley, Raphael, Clements, D. L., Pitchford, Lura K.
The luminosity function (LF) of active galactic nuclei (AGN) probes the history of supermassive black hole assembly and growth across cosmic time. To mitigate selection biases, we present a consistent analysis of the AGN LFs derived for both X-ray an
Externí odkaz:
http://arxiv.org/abs/2112.00082
Autor:
Nguyen, Dieu D., Bureau, Martin, Thater, Sabine, Nyland, Kristina, Brok, Mark den, Cappellari, Michelle, Davis, Timothy A., Greene, Jenny E., Neumayer, Nadine, Imanishi, Masatoshi, Izumi, Takuma, Kawamuro, Taiki, Baba, Shunsuke, Nguyen, Phuong M., Iguchi, Satoru, Tsukui, Takafumi, T., Lam N., Ho, Than
As part of the Measuring Black Holes in Below Milky Way-mass (M$^\star$) galaxies (MBHBM$^\star$) Project, we present a dynamical measurement of the supermassive black hole (SMBH) mass in the nearby lenticular galaxy NGC 3593, using cold molecular ga
Externí odkaz:
http://arxiv.org/abs/2110.08476
Autor:
Smercina, Adam, Smith, John-David T., French, K. Decker, Bell, Eric F., Dale, Daniel A., Medling, Anne M., Nyland, Kristina, Privon, George C., Rowlands, Kate, Walter, Fabian, Zabludoff, Ann I.
Post-starburst (PSB), or 'E+A', galaxies represent a rapid transitional phase between major, gas-rich mergers and gas-poor, quiescent early-type galaxies. Surprisingly, many PSBs have been shown to host a significant interstellar medium (ISM), despit
Externí odkaz:
http://arxiv.org/abs/2108.03231
Autor:
Sazonova, Elizaveta, Alatalo, Katherine, Rowlands, Kate, Deustua, Susana E., French, Decker, Heckman, Timothy M., Lanz, Lauranne, Lisenfeld, Ute, Luo, Yuanze, Medling, Anne M., Nyland, Kristina, Otter, Justin A., Petric, Andreea, Snyder, Gregory F., Urry, Claudia M.
How do galaxies transform from blue, star-forming spirals to red, quiescent early-type galaxies? To answer this question, we analyzed a set of 26 gas-rich, shocked post-starburst galaxies with Hubble Space Telescope (HST) imaging in B, I, and H bands
Externí odkaz:
http://arxiv.org/abs/2105.09956
Autor:
Zou, Fan, Yang, Guang, Brandt, W. N., Ni, Qingling, Bauer, Franz E., Covone, Giovanni, Lacy, Mark, Napolitano, Nicola R., Nyland, Kristina, Paolillo, Maurizio, Radovich, Mario, Spavone, Marilena, Vaccari, Mattia
Publikováno v:
Res. Notes AAS 5 56 (2021)
The W-CDF-S and ELAIS-S1 fields will be two of the LSST Deep Drilling fields, but the availability of spectroscopic redshifts within these two fields is still limited on deg^2 scales. To prepare for future science, we use EAZY to estimate photometric
Externí odkaz:
http://arxiv.org/abs/2103.13417