Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Terndrup, Donald M."'
Autor:
Green, Kaylie S., Gallagher, Sarah C., Leighly, Karen M., Choi, Hyunseop, Grupe, Dirk, Terndrup, Donald M., Richards, Gordon T., Komossa, S.
Publikováno v:
2023, ApJ, 953, 186
Broad Absorption Line Quasars (BALQs) are actively accreting supermassive black holes that have strong outflows characterized by broad absorption lines in their rest-UV spectra. Variability in these absorption lines occurs over months to years depend
Externí odkaz:
http://arxiv.org/abs/2405.06027
Autor:
Leighly, Karen M., Choi, Hyunseop, Eracleous, Michael, Terndrup, Donald M., Gallagher, Sarah C., Richards, Gordon T.
We present the optical-near infrared spectral energy distributions (SED) and near infrared variability properties of 30 low-redshift iron low-ionization Broad Absorption Line quasars (FeLoBALQs) and matched samples of LoBALQs and unabsorbed quasars.
Externí odkaz:
http://arxiv.org/abs/2402.07855
Autor:
Lebowitz, Sophie, Emonts, Bjorn, Terndrup, Donald M., Burchett, Joseph N., Prochaska, J. Xavier, Drouart, Guillaume, Villar-Martin, Montserrat, Lehnert, Matthew, De Breuck, Carlos, Vernet, Joel, Alatalo, Katherine
The Dragonfly Galaxy (MRC 0152-209), the most infrared-luminous radio galaxy at redshift z~2, is a merger system containing a powerful radio source and large displacements of gas. We present kpc-resolution data from ALMA and the VLA of carbon monoxid
Externí odkaz:
http://arxiv.org/abs/2305.05564
Autor:
Choi, Hyunseop, Leighly, Karen M., Dabbieri, Collin, Terndrup, Donald M., Gallagher, Sarah C., Richards, Gordon T.
We present continued analysis of a sample of low-redshift iron low-ionization broad absorption-line quasars (FeLoBALQs). Choi et al. (2022) presented $SimBAL$ spectral analysis of BAL outflows in 50 objects. Leighly et al. (2022) analyzed optical emi
Externí odkaz:
http://arxiv.org/abs/2208.02834
Autor:
Leighly, Karen M., Choi, Hyunseop, DeFrancesco, Cora, Voelker, Julianna, Terndrup, Donald M., Gallagher, Sarah C., Richards, Gordon T.
We report the results of analysis of the Hbeta emission-line region of a sample of thirty low-redshift (z<1) iron low-ionization broad absorption line quasars (FeLoBALQs). Eleven of these objects are newly classified as FeLoBALQs. A matched sample of
Externí odkaz:
http://arxiv.org/abs/2205.12946
Autor:
Choi, Hyunseop, Leighly, Karen M., Terndrup, Donald M., Dabbieri, Collin, Gallagher, Sarah C., Richards, Gordon T.
We present the first systematic study of 50 low redshift ($0.66 < z < 1.63$) iron low-ionization broad absorption-line quasars (FeLoBALQs) using $SimBAL$ which represents a more than five-fold increase in the number of FeLoBALQs with detailed absorpt
Externí odkaz:
http://arxiv.org/abs/2203.11964
We use 5,337 spectroscopic $v \sin i$ measurements of Kepler dwarfs and subgiants from the APOGEE survey to study stellar rotation trends. We find a detection threshold of 10 km/s, which allows us to explore the spindown of intermediate-mass stars le
Externí odkaz:
http://arxiv.org/abs/2006.14642
Autor:
Choi, Hyunseop, Leighly, Karen M., Terndrup, Donald M., Gallagher, Sarah C., Richards, Gordon T.
Broad absorption line (BAL) features in quasar spectra reveal an unambiguous signature of energetic outflows from central supermassive black holes, and thus BAL quasars are prime targets for investigating the potential process of luminous quasar feed
Externí odkaz:
http://arxiv.org/abs/2001.07347
Asteroseismology can provide joint constraints on masses and radii of individual stars. While this approach has been extensively tested for red giant branch (RGB) stars, it has been more difficult to test for helium core-burning red-clump (RC) giants
Externí odkaz:
http://arxiv.org/abs/1904.00122
Autor:
Leighly, Karen M., Terndrup, Donald M., Lucy, Adrian B., Choi, Hyunseop, Gallagher, Sarah C., Richards, Gordon T., Dietrich, Matthias, Raney, Catie
It has been known for 20 years that the absorbing gas in broad absorption line quasars does not completely cover the continuum emission region, and that partial covering must be accounted for to accurately measure the column density of the outflowing
Externí odkaz:
http://arxiv.org/abs/1811.04174