Search Results - "Hoffmann, Samantha L"

Hubble Space Telescope Observations of Mira Variables in the SN Ia Host NGC 1559: An Alternative Candle to Measure the Hubble Constant by Huang, Caroline D., Riess, Adam G., Yuan, Wenlong, Macri, Lucas M., Zakamska, Nadia L., Casertano, Stefano, Whitelock, Patricia A., Hoffmann, Samantha L., Filippenko, Alexei V., Scolnic, Daniel

“…We present year-long, near-infrared Hubble Space Telescope (HST) WFC3 observations used to search for Mira variables in NGC 1559, the host galaxy of the Type…”
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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

“…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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A Near-infrared Period-Luminosity Relation for Miras in NGC 4258, an Anchor for a New Distance Ladder by Huang, Caroline D., Riess, Adam G., Hoffmann, Samantha L., Klein, Christopher, Bloom, Joshua, Yuan, Wenlong, Macri, Lucas M., Jones, David O., Whitelock, Patricia A., Casertano, Stefano, Anderson, Richard I.

“…We present year-long, near-infrared (NIR) Hubble Space Telescope (HST) WFC3 observations of Mira variables in the water megamaser host galaxy NGC 4258. Miras…”
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Significant luminosity differences of two twin Type Ia supernovae by Foley, Ryan J, Hoffmann, Samantha L, Macri, Lucas M, Riess, Adam G, Brown, Peter J, Filippenko, Alexei V, Graham, Melissa L, Milne, Peter A

“…ABSTRACT The Type Ia supernovae (SNe Ia) 2011by, hosted in NGC 3972, and 2011fe, hosted in M101, are optical ‘twins,’ having almost identical optical…”
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OPTICAL IDENTIFICATION OF CEPHEIDS IN 19 HOST GALAXIES OF TYPE Ia SUPERNOVAE AND NGC 4258 WITH THE HUBBLE SPACE TELESCOPE by Hoffmann, Samantha L., Macri, Lucas M., Riess, Adam G., Yuan, Wenlong, Casertano, Stefano, Foley, Ryan J., Filippenko, Alexei V., Tucker, Brad E., Chornock, Ryan, Silverman, Jeffrey M., Welch, Douglas L., Goobar, Ariel, Amanullah, Rahman

“…ABSTRACT We present results of an optical search conducted as part of the SH0ES project (Supernovae and H 0 for the Equation of State of dark energy) for…”
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Absolute Calibration of Cepheid Period–Luminosity Relations in NGC 4258 by Yuan, Wenlong, Macri, Lucas M., Riess, Adam G., Brink, Thomas G., Casertano, Stefano, Filippenko, Alexei V., Hoffmann, Samantha L., Huang, Caroline D., Scolnic, Dan

“…Abstract Owing to its accurate distance measured from water-maser motions, NGC 4258 is one of the most important anchors for calibrating the Cepheid…”
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OPTICAL IDENTIFICATION OF CEPHEIDS IN 19 HOST GALAXIES OF TYPE Ia SUPERNOVAE AND NGC 4258 WITH THE HUBBLE SPACE TELESCOPE Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by AURA, Inc., under NASA contract NAS 5-26555 by Hoffmann, Samantha L., Macri, Lucas M., Riess, Adam G., Yuan, Wenlong, Casertano, Stefano, Foley, Ryan J., Filippenko, Alexei V., Tucker, Brad E., Chornock, Ryan, Silverman, Jeffrey M., Welch, Douglas L., Goobar, Ariel, Amanullah, Rahman

“…ABSTRACT We present results of an optical search conducted as part of the SH0ES project (Supernovae and H0 for the Equation of State of dark energy) for…”
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A 2.4% DETERMINATION OF THE LOCAL VALUE OF THE HUBBLE CONSTANT Based on observations with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by AURA, Inc., under NASA contract NAS 5-26555 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…”
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Absolute Calibration of Cepheid Period-Luminosity Relations in NGC 4258 by Yuan, Wenlong, Macri, Lucas M, Riess, Adam G, Brink, Thomas G, Casertano, Stefano, Filippenko, Alexei V, Hoffmann, Samantha L, Huang, Caroline D, Scolnic, Dan

“…NGC 4258 is one of the most important anchors for calibrating the Cepheid period--luminosity relations (PLRs) owing to its accurate distance measured from…”
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Cepheid Variables in the Maser-Host Galaxy NGC 4258 by Hoffmann, Samantha L, Macri, Lucas M

“…We present results of a ground-based survey for Cepheid variables in NGC 4258. This galaxy plays a key role in the Extragalactic Distance Scale due to its very…”
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Hubble Space Telescope Observations of Mira Variables in the Type Ia Supernova Host NGC 1559: An Alternative Candle to Measure the Hubble Constant by Huang, Caroline D, Riess, Adam G, Yuan, Wenlong, Macri, Lucas M, Zakamska, Nadia L, Casertano, Stefano, Whitelock, Patricia A, Hoffmann, Samantha L, Filippenko, Alexei V, Scolnic, Daniel

“…ApJ 2020 We present year-long, near-infrared Hubble Space Telescope WFC3 observations used to search for Mira variables in NGC 1559, the host galaxy of the…”
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The Cepheid Distance to the Narrow-Line Seyfert 1 Galaxy NGC 4051 by Yuan, Wenlong, Macri, Lucas M, Peterson, Bradley M, Riess, Adam G, Fausnaugh, Michael M, Hoffmann, Samantha L, Anand, Gagandeep S, Bentz, Misty C, Bontà, Elena Dalla, Davies, Richard I, de Rosa, Gisella, Ferrarese, Laura, Grier, Catherine J, Hicks, Erin K. S, Onken, Christopher A, Pogge, Richard W, Storchi-Bergmann, Thaisa, Vestergaard, Marianne

“…We derive a distance of $D = 16.6 \pm 0.3$~Mpc ($\mu=31.10\pm0.04$~mag) to the archetypal narrow-line Seyfert 1 galaxy NGC 4051 based on Cepheid…”
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The Cepheid Distance to the Seyfert 1 Galaxy NGC 4151 by Yuan, Wenlong, Fausnaugh, Michael M, Hoffmann, Samantha L, Macri, Lucas M, Peterson, Bradley M, Riess, Adam G, Bentz, Misty C, Brown, Jonathan S, Bontà, Elena Dalla, Davies, Richard I, de Rosa, Gisella, Ferrarese, Laura, Grier, Catherine J, Hicks, Erin K. S, Onken, Christopher A, Pogge, Richard W, Storchi-Bergmann, Thaisa, Vestergaard, Marianne

“…We derive a distance of $15.8\pm0.4$ Mpc to the archetypical Seyfert 1 galaxy NGC 4151 based on the near-infrared Cepheid Period-Luminosity relation and new…”
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Significant Luminosity Differences of Two Twin Type Ia Supernovae by Foley, Ryan J, Hoffmann, Samantha L, Macri, Lucas M, Riess, Adam G, Brown, Peter J, Filippenko, Alexei V, Graham, Melissa L, Milne, Peter A

“…The Type Ia supernovae (SNe Ia) 2011by, hosted in NGC 3972, and 2011fe, hosted in M101, are optical "twins," having almost identical optical light-curve…”
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A Near-Infrared Period-Luminosity Relation for Miras in NGC 4258, an Anchor for a New Distance Ladder by Huang, Caroline D, Riess, Adam G, Hoffmann, Samantha L, Klein, Christopher, Bloom, Joshua, Yuan, Wenlong, Macri, Lucas M, Jones, David O, Whitelock, Patricia A, Casertano, Stefano, Anderson, Richard I

“…ApJ 857 (2018) 67 We present year-long, near-infrared Hubble Space Telescope WFC3 observations of Mira variables in the water megamaser host galaxy NGC 4258…”
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Optical Identification of Cepheids in 19 Host Galaxies of Type Ia Supernovae and NGC 4258 with the Hubble Space Telescope by Hoffmann, Samantha L, Macri, Lucas M, Riess, Adam G, Yuan, Wenlong, Casertano, Stefano, Foley, Ryan J, Filippenko, Alexei V, Tucker, Brad E, Chornock, Ryan, Silverman, Jeffrey M, Welch, Douglas L, Goobar, Ariel, Amanullah, Rahman

“…We present results of an optical search for Cepheid variable stars using the Hubble Space Telescope (HST) in 19 hosts of Type Ia supernovae (SNe Ia) and the…”
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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

“…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 (H_0) from 3.3%…”
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