Search Results - "Silverman, Jeffrey M"

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    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

    Published in The Astrophysical journal (20-07-2016)
    “…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…”
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    Low-resolution sodium D absorption is a bad proxy for extinction by Poznanski, Dovi, Ganeshalingam, Mohan, Silverman, Jeffrey M., Filippenko, Alexei V.

    “…ABSTRACT Dust extinction is generally the least tractable systematic uncertainty in astronomy, and particularly in supernova science. Often in the past,…”
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    Fourteen months of observations of the possible super-Chandrasekhar mass Type Ia Supernova 2009dc by Silverman, Jeffrey M., Ganeshalingam, Mohan, Li, Weidong, Filippenko, Alexei V., Miller, Adam A., Poznanski, Dovi

    “…In this paper, we present and analyse optical photometry and spectra of the extremely luminous and slowly evolving Type Ia supernova (SN Ia) 2009dc, and offer…”
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    High-velocity features of calcium and silicon in the spectra of Type Ia supernovae by Silverman, Jeffrey M., Vinkó, József, Marion, G. H., Wheeler, J. Craig, Barna, Barnabás, Szalai, Tamás, Mulligan, Brian W., Filippenko, Alexei V.

    “…‘High-velocity features’ (HVFs) are spectral features in Type Ia supernovae (SNe Ia) that have minima indicating significantly higher (by greater than about…”
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    X-ray emission from SN 2012ca: A Type Ia-CSM supernova explosion in a dense surrounding medium by Bochenek, Christopher D., Dwarkadas, Vikram V., Silverman, Jeffrey M., Fox, Ori D., Chevalier, Roger A., Smith, Nathan, Filippenko, Alexei V.

    “…Abstract X-ray emission is one of the signposts of circumstellar interaction in supernovae (SNe), but until now, it has been observed only in core-collapse…”
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    Spectral Evolution of the Extraordinary Type IIn Supernova 2006gy by Smith, Nathan, Chornock, Ryan, Silverman, Jeffrey M, Filippenko, Alexei V, Foley, Ryan J

    Published in The Astrophysical journal (01-02-2010)
    “…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…”
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    Berkeley Supernova Ia Program - III. Spectra near maximum brightness improve the accuracy of derived distances to Type Ia supernovae by Silverman, Jeffrey M., Ganeshalingam, Mohan, Li, Weidong, Filippenko, Alexei V.

    “…In this third paper in a series we compare spectral feature measurements to photometric properties of 108 low-redshift (z < 0.1, 〈z〉 ≈ 0.023) Type Ia…”
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    A new and unusual LBV-like outburst from a Wolf–Rayet star in the outskirts of M33 by Smith, Nathan, E Andrews, Jennifer, Moe, Maxwell, Milne, Peter, Bilinski, Christopher, Kilpatrick, Charles D, Fong, Wen-Fai, Badenes, Carles, Filippenko, Alexei V, Kasliwal, Mansi, Silverman, Jeffrey M

    “…ABSTRACT MCA-1B (also called UIT003) is a luminous hot star in the western outskirts of M33, classified over 20 yr ago with a spectral type of Ofpe/WN9 and…”
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    On IC 10 X-1, the Most Massive Known Stellar-Mass Black Hole by Silverman, Jeffrey M, Filippenko, Alexei V

    Published in The Astrophysical journal (01-05-2008)
    “…IC 10 X-1 is a variable X-ray source in the Local Group starburst galaxy IC 10 whose optical counterpart is a Wolf-Rayet (WR) star. Prestwich and coworkers…”
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    A Massive Progenitor of the Luminous Type IIn Supernova 2010jl by Smith, Nathan, Li, Weidong, Miller, Adam A, Silverman, Jeffrey M, Filippenko, Alexei V, Cuillandre, Jean-Charles, Cooper, Michael C, Matheson, Thomas, Van Dyk, Schuyler D

    Published in The Astrophysical journal (10-05-2011)
    “…The bright, nearby, recently discovered supernova (SN) 2010jl is a luminous Type IIn SN. Here, we report archival Hubble Space Telescope (HST) observations of…”
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    SN 2006tf: Precursor Eruptions and the Optically Thick Regime of Extremely Luminous Type IIn Supernovae by Smith, Nathan, Chornock, Ryan, Li, Weidong, Ganeshalingam, Mohan, Silverman, Jeffrey M, Foley, Ryan J, Filippenko, Alexei V, Barth, Aaron J

    Published in The Astrophysical journal (10-10-2008)
    “…SN 2006tf is the third most luminous supernova (SN) discovered so far, after SN 2005ap and SN 2006gy. SN 2006tf is valuable because it provides a link between…”
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    SN 2011hw: helium-rich circumstellar gas and the luminous blue variable to Wolf-Rayet transition in supernova progenitors by Smith, Nathan, Mauerhan, Jon C., Silverman, Jeffrey M., Ganeshalingam, Mohan, Filippenko, Alexei V., Cenko, S. Bradley, Clubb, Kelsey I., Kandrashoff, Michael T.

    “…Abstract We present optical photometry and spectroscopy of the peculiar Type IIn/Ibn supernova (SN) 2011hw. Its optical light curve exhibits a slower decline…”
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