Search Results - "Jayasinghe, Tharindu"

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    Modeling of Granulation in Red Supergiants in the Magellanic Clouds with the Gaussian Process Regressions by Zhang, Zehao, Ren, Yi, Jiang, Biwei, Soszyński, Igor, Jayasinghe, Tharindu

    Published in The Astrophysical journal (01-07-2024)
    “…Abstract The granulation of red supergiants (RSGs) in the Magellanic Clouds is systematically investigated by combining the latest RSG samples and light curves…”
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    Journal Article
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    Response to Comment on "A noninteracting low-mass black hole-giant star binary system" by Thompson, Todd A, Kochanek, Christopher S, Stanek, Krzysztof Z, Badenes, Carles, Jayasinghe, Tharindu, Tayar, Jamie, Johnson, Jennifer A, Holoien, Thomas W-S, Auchettl, Katie, Covey, Kevin

    “…Van den Heuvel and Tauris argue that if the red giant star in the system 2MASS J05215658+4359220 has a mass of 1 solar mass ( ), then its unseen companion…”
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    Journal Article
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    High mass function ellipsoidal variables in the Gaia Focused Product Release: searching for black hole candidates in the binary zoo by Rowan, Dominick M., Thompson, Todd A., Jayasinghe, Tharindu, Kochanek, Christopher S., Stanek, Krzysztof Z.

    Published in The open journal of astrophysics (04-04-2024)
    “…The recent Gaia Focused Product Release contains radial velocity time-series for more than 9,000 Gaia long-period photometric variables. Here we search for…”
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    Journal Article
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    The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar, and APOGEE-2 Data by Filiz Ak, N., Andrews, Brett H., Anguiano, Borja, Aquino-Ortíz, Erik, Argudo-Fernández, Maria, Ata, Metin, Aubert, Marie, Barger, Kat, Beers, Timothy C., Bernardi, Mariangela, Bidin, Christian Moni, Bird, Jonathan C., Bizyaev, Dmitry, Blanc, Guillermo A., Blanton, Michael R., Borissova, Jura, Buchner, Johannes, Bundy, Kevin, Bureau, Martin, Burgasser, Adam, Cabang, Tuesday K., Cappellari, Michele, Cherinka, Brian, Chung, Haeun, Clerc, Nicolas, Comerford, Julia M., Crane, Jeffrey D., Dai, Y. Sophia, Damke, Guillermo, Darling, Jeremy, Dawson, Kyle, De Lee, Nathan, Sánchez, Helena Domínguez, Eisenstein, Daniel J., Emsellem, Eric, Fan, Xiaohui, Fillingham, Sean P, Frinchaboy, Peter M., Fromenteau, Sebastien, Geisler, Doug, Gelfand, Joseph, Goddy, Julian, Greener, Michael, Grier, Catherine J., Hearty, Fred, Holtzman, Jon A., Hsieh, Bau-Ching, Hsu, Yun-Hsin, Ilha, Gabriele S., Jaekle, Will, Khalatyan, Dr. Arman, Kreckel, Kathryn, Lane, Richard R., Lazarz, Daniel, Leung, Henry W., Li, Ran, Liang, Fu-Heng, Long, Dan, Luo, Yuanze, Manchado, Arturo, Mathur, Savita, McDermid, Richard M., Mckay, Myles, Merrifield, Michael, Di Mille, Francesco, Muñoz, Ricardo R., Nandra, Kirpal, Nitschelm, Christian, Garma-Oehmichen, Luis, Perez-Fournon, Ismael, Bárbara de Andrade Queiroz, Anna, Riffel, Rogério, Roman-Lopes, Alexandre, Román-Zúñiga, Carlos, Rubin, Kate H. R., Sarmiento, Regina, Sayres, Conor, Schaefer, Adam L., Schiavon, Ricardo, Schlegel, David J, Schwope, Axel, Serenelli, Aldo, Shetrone, Matthew, Skrutskie, M. F., Steinmetz, Matthias, Storchi-Bergmann, Thaisa, Stutz, Amelia, Taghizadeh-Popp, Manuchehr, Teske, Johanna, Thakar, Ani, Theissen, Christopher, Tkachenko, Andrew, Tojeiro, Rita, Turner, Jacqueline, Vargas-González, Jaime, Villanova, Sandro, Vincenzo, Fiorenzo, Westfall, Kyle B., Wild, Vivienne, Wilde, Matthew C.

    Published in The Astrophysical journal (16-03-2022)
    “…Abstract This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase…”
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    Journal Article
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    Unicorns and giraffes in the binary zoo: stripped giants with subgiant companions by El-Badry, Kareem, Seeburger, Rhys, Jayasinghe, Tharindu, Rix, Hans-Walter, Almada, Silvia, Conroy, Charlie, Price-Whelan, Adrian M, Burdge, Kevin

    “…ABSTRACT We analyse two binary systems containing giant stars, V723 Mon (‘the Unicorn’) and 2M04123153+6738486 (‘the Giraffe’). Both giants orbit more massive…”
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    Journal Article
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    Birth of a Be star: an APOGEE search for Be stars forming through binary mass transfer by El-Badry, Kareem, Conroy, Charlie, Quataert, Eliot, Rix, Hans-Walter, Labadie-Bartz, Jonathan, Jayasinghe, Tharindu, Thompson, Todd, Cargile, Phillip, Stassun, Keivan G, Ilyin, Ilya

    “…ABSTRACT Motivated by recent suggestions that many Be stars form through binary mass transfer, we searched the APOGEE survey for Be stars with bloated,…”
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    Journal Article
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    Seven classes of rotational variables from a study of 50 000 spotted stars with ASAS-SN, Gaia, and APOGEE by Phillips, Anya, Kochanek, C S, Jayasinghe, Tharindu, Cao, Lyra, Christy, Collin T, Rowan, D M, Pinsonneault, Marc

    “…ABSTRACT We examine the properties of ∼50 000 rotational variables from the ASAS-SN survey using distances, stellar properties, and probes of binarity from…”
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    Journal Article
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    A Catalog of M-dwarf Flares with ASAS-SN by Rodríguez Martínez, Romy, Lopez, Laura A., Shappee, Benjamin J., Schmidt, Sarah J., Jayasinghe, Tharindu, Kochanek, Christopher S., Auchettl, Katie, Holoien, Thomas W.-S.

    Published in The Astrophysical journal (01-04-2020)
    “…We analyzed the light curves of 1376 early-to-late, nearby M dwarfs to search for white-light flares using photometry from the All-Sky Automated Survey for…”
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    Journal Article
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    The Milky Way Project second data release: bubbles and bow shocks by Jayasinghe, Tharindu, Dixon, Don, Povich, Matthew S, Binder, Breanna, Velasco, Jose, Lepore, Denise M, Xu, Duo, Offner, Stella, Kobulnicky, Henry A, Anderson, Loren D, Kendrew, Sarah, Simpson, Robert J

    “…ABSTRACT Citizen science has helped astronomers comb through large data sets to identify patterns and objects that are not easily found through automated…”
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    Journal Article
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    The Milky Way Project: Probing Star Formation with First Results on Yellowballs from DR2 by Wolf-Chase, Grace, Kerton, C. R., Devine, Kathryn, Pouydal, Anupa, Mori, Johanna, Trujillo, Leonardo, Cossairt, Aurora, Schoultz, Sarah, Jayasinghe, Tharindu, Povich, Matthew

    Published in The Astrophysical journal (01-04-2021)
    “…Abstract Yellowballs (YBs) were first discovered during the Milky Way Project (MWP) citizen science initiative. The MWP users noticed compact, yellow regions…”
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    Journal Article
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    A hidden population of massive white dwarfs: two spotted K + WD binaries by Rowan, Dominick M, Jayasinghe, Tharindu, Tucker, Michael A, Lam, Casey Y, Thompson, Todd A, Kochanek, Christopher S, Abrams, Natasha S, Fulton, Benjamin J, Ilyin, Ilya, Isaacson, Howard, Lu, Jessica R, Martin, David V, Nicholson, Belinda

    “…ABSTRACT The identification and characterization of massive (≳ 0.8 M⊙) white dwarfs is challenging in part due to their low luminosity. Here, we present two…”
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    Journal Article
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    Stellar Spectra Fitting with Amortized Neural Posterior Estimation and nbi by Zhang, Keming, Jayasinghe, Tharindu, Bloom, Joshua S

    Published 09-12-2023
    “…Modern surveys often deliver hundreds of thousands of stellar spectra at once, which are fit to spectral models to derive stellar parameters/labels. Therefore,…”
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    Journal Article
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    Modeling of Granulation in Red Supergiants in the Magellanic Clouds with the Gaussian Process Regressions by Zhang, Zehao, Ren, Yi, Jiang, Biwei, Soszynski, Igor, Jayasinghe, Tharindu

    Published 02-05-2024
    “…The granulation of red supergiants (RSGs) in the Magellanic Clouds are systematically investigated by combining the latest RSGs samples and light curves from…”
    Get full text
    Journal Article
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    The Discovery and Characterization of Variable Stars in the All-Sky Automated Survey for SuperNovae by Jayasinghe Arachchilage, Tharindu Keshawa

    Published 01-01-2022
    “…While the Universe might at first appear static and unchanging to a casual observer, it is teeming with variable sources and cataclysmic events that mark the…”
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    Dissertation
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    Seven Classes of Rotational Variables From a Study of 50,000 Spotted Stars with ASAS-SN, Gaia, and APOGEE by Phillips, Anya, Kochanek, C. S, Jayasinghe, Tharindu, Cao, Lyra, Christy, Collin T, Rowan, D. M, Pinsonneault, Marc

    Published 16-05-2023
    “…We examine the properties of $\sim50,000$ rotational variables from the ASAS-SN survey using distances, stellar properties, and probes of binarity from…”
    Get full text
    Journal Article
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    Unicorns and Giraffes in the binary zoo: stripped giants with subgiant companions by El-Badry, Kareem, Seeburger, Rhys, Jayasinghe, Tharindu, Rix, Hans-Walter, Almada, Silvia, Conroy, Charlie, Price-Whelan, Adrian M, Burdge, Kevin

    Published 11-03-2022
    “…We analyze two binary systems containing giant stars, V723 Mon ("the Unicorn") and 2M04123153+6738486 ("the Giraffe"). Both giants orbit more massive but less…”
    Get full text
    Journal Article
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    A Multiwavelength Study of the Massive Colliding Wind Binary WR 20a: A Possible Progenitor for Fast-Spinning LIGO Binary Black Hole Mergers by Olivier, Grace M, Lopez, Laura A, Auchettl, Katie, Rosen, Anna L, Batta, Aldo, Neugent, Kathryn F, Ramirez-Ruiz, Enrico, Jayasinghe, Tharindu, Vallely, Patrick J, Rowan, Dominick M

    Published 05-12-2022
    “…WR 20a is the most massive close-in binary known in our Galaxy. It is composed of two $\approx$80 M$_\odot$ Wolf-Rayet stars with a short period of…”
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    Journal Article
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    Birth of a Be star: an APOGEE search for Be stars forming through binary mass transfer by El-Badry, Kareem, Conroy, Charlie, Quataert, Eliot, Rix, Hans-Walter, Labadie-Bartz, Jonathan, Jayasinghe, Tharindu, Thompson, Todd, Cargile, Phillip, Stassun, Keivan G, Ilyin, Ilya

    Published 24-08-2022
    “…Motivated by recent suggestions that many Be stars form through binary mass transfer, we searched the APOGEE survey for Be stars with bloated, stripped…”
    Get full text
    Journal Article