Search Results - "Foley, Ryan J."

Kinematics and host-galaxy properties suggest a nuclear origin for calcium-rich supernova progenitors by Foley, Ryan J.

“…Calcium-rich supernovae (Ca-rich SNe) are peculiar low-luminosity SNe Ib with relatively strong Ca spectral lines at ∼2 months after peak brightness. This…”
Get full text

A 2.4% DETERMINATION OF THE LOCAL VALUE OF THE HUBBLE CONSTANT by Riess, Adam G, Macri, Lucas M, Hoffmann, Samantha L, Scolnic, Dan, Casertano, Stefano, Filippenko, Alexei V, Tucker, Brad E, Reid, Mark J, Jones, David O, Silverman, Jeffrey M, Chornock, Ryan, Challis, Peter, Yuan, Wenlong, Brown, Peter J, Foley, Ryan J

“…ABSTRACT We use the Wide Field Camera 3 (WFC3) on the Hubble Space Telescope (HST) to reduce the uncertainty in the local value of the Hubble constant from…”
Get full text

Three Hypervelocity White Dwarfs in Gaia DR2: Evidence for Dynamically Driven Double-degenerate Double-detonation Type Ia Supernovae by Shen, Ken J., Boubert, Douglas, Gänsicke, Boris T., Jha, Saurabh W., Andrews, Jennifer E., Chomiuk, Laura, Foley, Ryan J., Fraser, Morgan, Gromadzki, Mariusz, Guillochon, James, Kotze, Marissa M., Maguire, Kate, Siebert, Matthew R., Smith, Nathan, Strader, Jay, Badenes, Carles, Kerzendorf, Wolfgang E., Koester, Detlev, Kromer, Markus, Miles, Broxton, Pakmor, Rüdiger, Schwab, Josiah, Toloza, Odette, Toonen, Silvia, Townsley, Dean M., Williams, Brian J.

“…Double detonations in double white dwarf (WD) binaries undergoing unstable mass transfer have emerged in recent years as one of the most promising Type Ia…”
Get full text

Nearby supernova rates from the Lick Observatory Supernova Search - II. The observed luminosity functions and fractions of supernovae in a complete sample by Li, Weidong, Leaman, Jesse, Chornock, Ryan, Filippenko, Alexei V., Poznanski, Dovi, Ganeshalingam, Mohan, Wang, Xiaofeng, Modjaz, Maryam, Jha, Saurabh, Foley, Ryan J., Smith, Nathan

“…This is the second paper of a series in which we present new measurements of the observed rates of supernovae (SNe) in the local Universe, determined from the…”
Get full text

Revisiting the Lick Observatory Supernova Search Volume-limited Sample: Updated Classifications and Revised Stripped-envelope Supernova Fractions by Shivvers, Isaac, Modjaz, Maryam, Zheng, WeiKang, Liu, Yuqian, Filippenko, Alexei V., Silverman, Jeffrey M., Matheson, Thomas, Pastorello, Andrea, Graur, Or, Foley, Ryan J., Chornock, Ryan, Smith, Nathan, Leaman, Jesse, Benetti, Stefano

“…We re-examine the classifications of supernovae (SNe) presented in the Lick Observatory Supernova Search (LOSS) volume-limited sample with a focus on the…”
Get full text

Measuring the Hubble constant with a sample of kilonovae by Coughlin, Michael W., Antier, Sarah, Dietrich, Tim, Foley, Ryan J., Heinzel, Jack, Bulla, Mattia, Christensen, Nelson, Coulter, David A., Issa, Lina, Khetan, Nandita

“…Kilonovae produced by the coalescence of compact binaries with at least one neutron star are promising standard sirens for an independent measurement of the…”
Get full text

A luminosity distribution for kilonovae based on short gamma-ray burst afterglows by Ascenzi, Stefano, Coughlin, Michael W, Dietrich, Tim, Foley, Ryan J, Ramirez-Ruiz, Enrico, Piranomonte, Silvia, Mockler, Brenna, Murguia-Berthier, Ariadna, Fryer, Chris L, Lloyd-Ronning, Nicole M, Rosswog, Stephan

“…Abstract The combined detection of a gravitational-wave signal, kilonova, and short gamma-ray burst (sGRB) from GW170817 marked a scientific breakthrough in…”
Get full text

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…”
Get full text

The Type Ia Supernova Color-Magnitude Relation and Host Galaxy Dust: A Simple Hierarchical Bayesian Model by Mandel, Kaisey S., Scolnic, Daniel M., Shariff, Hikmatali, Foley, Ryan J., Kirshner, Robert P.

“…Conventional Type Ia supernova (SN Ia) cosmology analyses currently use a simplistic linear regression of magnitude versus color and light curve shape, which…”
Get full text

Evolution of the Mass–Metallicity Relation from Redshift z ≈ 8 to the Local Universe by Langeroodi, Danial, Hjorth, Jens, Chen, Wenlei, Kelly, Patrick L., Williams, Hayley, Lin, Yu-Heng, Scarlata, Claudia, Zitrin, Adi, Broadhurst, Tom, Diego, Jose M., Huang, Xiaosheng, Filippenko, Alexei V., Foley, Ryan J., Jha, Saurabh, Koekemoer, Anton M., Oguri, Masamune, Perez-Fournon, Ismael, Pierel, Justin, Poidevin, Frederick, Strolger, Lou

“…Abstract A tight positive correlation between the stellar mass and the gas-phase metallicity of galaxies has been observed at low redshifts. The redshift…”
Get full text

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…”
Get full text

On the progenitor of the Type IIb supernova 2016gkg by Kilpatrick, Charles D, Foley, Ryan J, Abramson, Louis E, Pan, Yen-Chen, Lu, Cicero-Xinyu, Williams, Peter, Treu, Tommaso, Siebert, Matthew R, Fassnacht, Christopher D, Max, Claire E

“…We present a detection in pre-explosion Hubble Space Telescope(HST) imaging of a point source consistent with being the progenitor star of the Type IIb…”
Get full text

Searching for Highly Magnified Stars at Cosmological Distances: Discovery of a Redshift 0.94 Blue Supergiant in Archival Images of the Galaxy Cluster MACS J0416.1-2403 by Chen, Wenlei, Kelly, Patrick L., Diego, Jose M., Oguri, Masamune, Williams, Liliya L. R., Zitrin, Adi, Treu, Tommaso L., Smith, Nathan, Broadhurst, Thomas J., Kaiser, Nick, Foley, Ryan J., Filippenko, Alexei V., Salo, Laura, Hjorth, Jens, Selsing, Jonatan

“…Individual highly magnified stars have been recently discovered at lookback times of more than half the age of the universe, in lensed galaxies that straddle…”
Get full text

Optimizing multitelescope observations of gravitational-wave counterparts by Coughlin, Michael W, Antier, Sarah, Corre, David, Alqassimi, Khalid, Anand, Shreya, Christensen, Nelson, Coulter, David A, Foley, Ryan J, Guessoum, Nidhal, Mikulski, Timothy M, Mualla, Mouza Al, Reed, Draco, Tao, Duo

“…ABSTRACT The ever-increasing sensitivity of the network of gravitational-wave detectors has resulted in the accelerated rate of detections from compact binary…”
Get full text

The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements by Kelly, Patrick L., Rodney, Steven, Treu, Tommaso, Birrer, Simon, Bonvin, Vivien, Dessart, Luc, Foley, Ryan J., Filippenko, Alexei V., Gilman, Daniel, Jha, Saurabh, Hjorth, Jens, Mandel, Kaisey, Millon, Martin, Pierel, Justin, Thorp, Stephen, Zitrin, Adi, Broadhurst, Tom, Chen, Wenlei, Diego, Jose M., Dressler, Alan, Graur, Or, Jauzac, Mathilde, Malkan, Matthew A., McCully, Curtis, Oguri, Masamune, Postman, Marc, Schmidt, Kasper Borello, Sharon, Keren, Tucker, Brad E., von der Linden, Anja, Wambsganss, Joachim

“…Abstract In late 2014, four images of supernova (SN) “Refsdal,” the first known example of a strongly lensed SN with multiple resolved images, were detected in…”
Get full text

Spectral Evolution of the Extraordinary Type IIn Supernova 2006gy by Smith, Nathan, Chornock, Ryan, Silverman, Jeffrey M, Filippenko, Alexei V, Foley, Ryan J

“…We present a detailed analysis of the extremely luminous and long-lasting Type IIn supernova (SN) 2006gy using spectra obtained between days 36 and 237 after…”
Get full text

Updated Photometry of the Yellow Supergiant Progenitor and Late-time Observations of the Type IIb Supernova SN 2016gkg by Kilpatrick, Charles D., Coulter, David A., Foley, Ryan J., Piro, Anthony L., Rest, Armin, Rojas-Bravo, César, Siebert, Matthew R.

“…Abstract We present Hubble Space Telescope (HST) observations of the Type IIb supernova (SN) SN 2016gkg at 652, 1698, and 1795 days from explosion with the…”
Get full text

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,…”
Get full text

On the type Ia supernovae 2007on and 2011iv: evidence for Chandrasekhar-mass explosions at the faint end of the luminosity–width relationship by Ashall, C, Mazzali, P A, Stritzinger, M D, Hoeflich, P, Burns, C R, Gall, C, Hsiao, E Y, Phillips, M M, Morrell, N, Foley, Ryan J

“…Abstract Radiative transfer models of two transitional type Ia supernovae (SNe Ia) have been produced using the abundance stratification technique. These two…”
Get full text

A Carbon/Oxygen-dominated Atmosphere Days after Explosion for the “Super-Chandrasekhar” Type Ia SN 2020esm by Dimitriadis, Georgios, Foley, Ryan J., Arendse, Nikki, Coulter, David A., Jacobson-Galán, Wynn V., Siebert, Matthew R., Izzo, Luca, Jones, David O., Kilpatrick, Charles D., Pan, Yen-Chen, Taggart, Kirsty, Auchettl, Katie, Gall, Christa, Hjorth, Jens, Kasen, Daniel, Piro, Anthony L., Raimundo, Sandra I., Ramirez-Ruiz, Enrico, Rest, Armin, Swift, Jonathan J., Woosley, Stan E.

“…Abstract Seeing pristine material from the donor star in a type Ia supernova (SN Ia) explosion can reveal the nature of the binary system. In this paper, we…”
Get full text