Search Results - "Drout, Maria R."

The Lanthanide Fraction Distribution in Metal-poor Stars: A Test of Neutron Star Mergers as the Dominant r-process Site by Ji, Alexander P., Drout, Maria R., Hansen, Terese T.

“…Multimessenger observations of the neutron star merger GW170817 and its kilonova proved that neutron star mergers can synthesize large quantities of r-process…”
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Collapsar R-process Yields Can Reproduce [Eu/Fe] Abundance Scatter in Metal-poor Stars by Brauer, Kaley, Ji, Alexander P., Drout, Maria R., Frebel, Anna

“…Abstract It is unclear if neutron star mergers can explain the observed r -process abundances of metal-poor stars. Collapsars, defined here as rotating massive…”
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A cool and inflated progenitor candidate for the Type Ib supernova 2019yvr at 2.6 yr before explosion by Kilpatrick, Charles D, Drout, Maria R, Auchettl, Katie, Dimitriadis, Georgios, Foley, Ryan J, Jones, David O, DeMarchi, Lindsay, French, K Decker, Gall, Christa, Hjorth, Jens, Jacobson-Galán, Wynn V, Margutti, Raffaella, Piro, Anthony L, Ramirez-Ruiz, Enrico, Rest, Armin, Rojas-Bravo, César

“…ABSTRACT We present Hubble Space Telescope imaging of a pre-explosion counterpart to SN 2019yvr obtained 2.6 yr before its explosion as a type Ib supernova…”
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The Nickel Mass Distribution of Stripped-envelope Supernovae: Implications for Additional Power Sources by Afsariardchi, Niloufar, Drout, Maria R., Khatami, David K., Matzner, Christopher D., Moon, Dae-Sik, Ni, Yuan Qi

“…Abstract We perform a systematic study of the 56 Ni mass ( M Ni ) of 27 stripped-envelope supernovae (SESNe) by modeling their light-curve tails, highlighting…”
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The First Systematic Study of Type Ibc Supernova Multi-band Light Curves by Drout, Maria R, Soderberg, Alicia M, Gal-Yam, Avishay, Cenko, S. Bradley, Fox, Derek B, Leonard, Douglas C, Sand, David J, Moon, Dae-Sik, Arcavi, Iair, Green, Yoav

“…We present detailed optical photometry for 25 Type Ibc supernovae (SNe Ibc) within d 150 Mpc obtained with the robotic Palomar 60 inch telescope in 2004-2007…”
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Spectroscopic r-process Abundance Retrieval for Kilonovae. II. Lanthanides in the Inferred Abundance Patterns of Multicomponent Ejecta from the GW170817 Kilonova by Vieira, Nicholas, Ruan, John J., Haggard, Daryl, Ford, Nicole M., Drout, Maria R., Fernández, Rodrigo

“…Abstract In kilonovae, freshly synthesized r -process elements imprint features on optical spectra, as observed in AT2017gfo, the counterpart to the GW170817…”
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Spectroscopic r-Process Abundance Retrieval for Kilonovae. I. The Inferred Abundance Pattern of Early Emission from GW170817 by Vieira, Nicholas, Ruan, John J., Haggard, Daryl, Ford, Nicole, Drout, Maria R., Fernández, Rodrigo, Badnell, N. R.

“…Abstract Freshly synthesized r -process elements in kilonovae ejecta imprint absorption features on optical spectra, as observed in the GW170817 binary neutron…”
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A Deep CFHT Optical Search for a Counterpart to the Possible Neutron Star-Black Hole Merger GW190814 by Vieira, Nicholas, Ruan, John J., Haggard, Daryl, Drout, Maria R., Nynka, Melania C., Boyce, Hope, Spekkens, Kristine, Safi-Harb, Samar, Carlberg, Raymond G., Fernández, Rodrigo, Piro, Anthony L., Afsariardchi, Niloufar, Moon, Dae-Sik

“…We present a wide-field optical imaging search for electromagnetic counterparts to the likely neutron star-black hole (NS-BH) merger GW190814/S190814bv. This…”
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SN 2023ixf in Messier 101: A Variable Red Supergiant as the Progenitor Candidate to a Type II Supernova by Kilpatrick, Charles D., Foley, Ryan J., Jacobson-Galán, Wynn V., Piro, Anthony L., Smartt, Stephen J., Drout, Maria R., Gagliano, Alexander, Gall, Christa, Hjorth, Jens, Jones, David O., Mandel, Kaisey S., Margutti, Raffaella, Ramirez-Ruiz, Enrico, Ransome, Conor L., Villar, V. Ashley, Coulter, David A., Gao, Hua, Matthews, David Jacob, Taggart, Kirsty, Zenati, Yossef

“…Abstract We present preexplosion optical and infrared (IR) imaging at the site of the type II supernova (SN II) 2023ixf in Messier 101 at 6.9 Mpc. We…”
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The Luminosity Function of Red Supergiants in M31 by Neugent, Kathryn F., Massey, Philip, Georgy, Cyril, Drout, Maria R., Mommert, Michael, Levesque, Emily M., Meynet, Georges, Ekström, Sylvia

“…The mass-loss rates of red supergiant stars (RSGs) are poorly constrained by direct measurements, and yet the subsequent evolution of these stars depends…”
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First ALMA Light Curve Constrains Refreshed Reverse Shocks and Jet Magnetization in GRB 161219B by Laskar, Tanmoy, Alexander, Kate D., Berger, Edo, Guidorzi, Cristiano, Margutti, Raffaella, Fong, Wen-fai, Kilpatrick, Charles D., Milne, Peter, Drout, Maria R., Mundell, C. G., Kobayashi, Shiho, Lunnan, Ragnhild, Duran, Rodolfo Barniol, Menten, Karl M., Ioka, Kunihito, Williams, Peter K. G.

“…We present detailed multiwavelength observations of GRB 161219B at z = 0.1475, spanning the radio to X-ray regimes, and the first Atacama Large…”
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Binary Yellow Supergiants in the Magellanic Clouds. I. Photometric Candidate Identification by O’Grady, Anna J. G., Drout, Maria R., Neugent, Kathryn F., Ludwig, Bethany, Götberg, Ylva, Gaensler, B. M.

“…Abstract Recent works have constrained the binary fraction of evolved populations of massive stars in local galaxies such as red supergiants and Wolf–Rayet…”
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Variability of Red Supergiants in M31 from the Palomar Transient Factory by Soraisam, Monika D., Bildsten, Lars, Drout, Maria R., Bauer, Evan B., Gilfanov, Marat, Kupfer, Thomas, Laher, Russ R., Masci, Frank, Prince, Thomas A., Kulkarni, Shrinivas R., Matheson, Thomas, Saha, Abhijit

“…Most massive stars end their lives as red supergiants (RSGs), a short-lived evolutionary phase when they are known to pulsate with varying amplitudes. The RSG…”
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Late-time Hubble Space Telescope Observations of AT 2018cow. II. Evolution of a UV-bright Underlying Source 2–4 Yr Post-discovery by Chen, Yuyang, Drout, Maria R., Piro, Anthony L., Kilpatrick, Charles D., Foley, Ryan J., Rojas-Bravo, César, Magee, M. R.

“…Abstract In this second of a two-paper series, we present a detailed analysis of three Hubble Space Telescope observations taken ∼2–4 yr post-discovery,…”
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Origin of High-velocity Ejecta, Excess Emission, and Redward Color Evolution in the Infant Type Ia Supernova 2021aefx by Ni, Yuan Qi, Moon, Dae-Sik, Drout, Maria R., Matzner, Christopher D., Leong, Kelvin C. C., Kim, Sang Chul, Park, Hong Soo, Lee, Youngdae

“…Abstract SN 2021aefx is a normal Type Ia supernova (SN) showing excess emission and redward color evolution over the first ∼ 2 days. We present analyses of…”
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The Largest M Dwarf Flares from ASAS-SN by Schmidt, Sarah J., Shappee, Benjamin J., van Saders, Jennifer L., Stanek, K. Z., Brown, Jonathan S., Kochanek, C. S., Dong, Subo, Drout, Maria R., Frank, Stephan, Holoien, T. W.-S., Johnson, Sean, Madore, Barry F., Prieto, J. L., Seibert, Mark, Seidel, Marja K., Simonian, Gregory V. A.

“…The All-sky Automated Survey for Supernovae (ASAS-SN) is the only project in existence to scan the entire sky in optical light approximately every day,…”
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An Untargeted Search for Radio-emitting Tidal Disruption Events in the VAST Pilot Survey by Dykaar, Hannah, Drout, Maria R., Gaensler, B. M., Kaplan, David L., Murphy, Tara, Horesh, Assaf, Anumarlapudi, Akash, Dobie, Dougal, Driessen, Laura N., Lenc, Emil, Stewart, Adam J.

“…Abstract We present a systematic search for tidal disruption events (TDEs) using radio data from the Variables and Slow Transients (VAST) Pilot Survey…”
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GRB 130606A AS A PROBE OF THE INTERGALACTIC MEDIUM AND THE INTERSTELLAR MEDIUM IN A STAR-FORMING GALAXY IN THE FIRST Gyr AFTER THE BIG BANG by CHORNOCK, RYAN, Berger, Edo, Fox, Derek B, Lunnan, Ragnhild, Drout, Maria R, Fong, Wen-Fai, Laskar, Tanmoy, Roth, Katherine C

“…We present high signal-to-noise ratio Gemini and MMT spectroscopy of the optical afterglow of the gamma-ray burst (GRB) 130606A at redshift z = 5.913,…”
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The Center of Expansion and Age of the Oxygen-rich Supernova Remnant 1E 0102.2-7219 by Banovetz, John, Milisavljevic, Dan, Sravan, Niharika, Fesen, Robert A., Patnaude, Daniel J., Plucinsky, Paul P., Blair, William P., Weil, Kathryn E., Morse, Jon A., Margutti, Raffaella, Drout, Maria R.

“…Abstract We present new proper-motion measurements of optically emitting oxygen-rich knots of supernova remnant 1E 0102.2-7219 (E0102), which are used to…”
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Cool, Luminous, and Highly Variable Stars in the Magellanic Clouds from ASAS-SN: Implications for Thorne–Żytkow Objects and Super-asymptotic Giant Branch Stars by O’Grady, Anna J. G., Drout, Maria R., Shappee, B. J., Bauer, Evan B., Fuller, Jim, Kochanek, C. S., Jayasinghe, T., Gaensler, B. M., Stanek, K. Z., Holoien, Thomas W.-S., Prieto, J. L., Thompson, Todd A.

“…Abstract Stars with unusual properties can provide a wealth of information about rare stages of stellar evolution and exotic physics. However, determining the…”
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