Search Results - "Hoyt, Taylor"

Calibration of the Tip of the Red Giant Branch by Freedman, Wendy L., Madore, Barry F., Hoyt, Taylor, Jang, In Sung, Beaton, Rachael, Lee, Myung Gyoon, Monson, Andrew, Neeley, Jill, Rich, Jeffrey

“…The tip of the red giant branch (TRGB) method provides one of the most accurate and precise means of measuring the distances to nearby galaxies. Here we…”
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The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch by Freedman, Wendy L., Madore, Barry F., Hatt, Dylan, Hoyt, Taylor J., Jang, In Sung, Beaton, Rachael L., Burns, Christopher R., Lee, Myung Gyoon, Monson, Andrew J., Neeley, Jillian R., Phillips, M. M., Rich, Jeffrey A., Seibert, Mark

“…Abstract We present a new and independent determination of the local value of the Hubble constant based on a calibration of the tip of the red giant branch…”
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Sub-per-cent determination of the brightness at the tip of the red giant branch in the Magellanic Clouds by Hoyt, Taylor J.

“…The value of the Hubble constant as constrained by type Ia supernovae is directly tied to the zero point of the extragalactic distance scale, which is in turn…”
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The Carnegie–Chicago Hubble Program. III. The Distance to NGC 1365 via the Tip of the Red Giant Branch by Jang, In Sung, Hatt, Dylan, Beaton, Rachael L., Lee, Myung Gyoon, Freedman, Wendy L., Madore, Barry F., Hoyt, Taylor J., Monson, Andrew J., Rich, Jeffrey A., Scowcroft, Victoria, Seibert, Mark

“…Abstract The Carnegie–Chicago Hubble Program (CCHP) seeks to anchor the distance scale of Type Ia supernovae via the Tip of the Red Giant Branch (TRGB) method…”
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The Carnegie–Chicago Hubble Program. V. The Distances to NGC 1448 and NGC 1316 via the Tip of the Red Giant Branch by Hatt, Dylan, Freedman, Wendy L., Madore, Barry F., Jang, In Sung, Beaton, Rachael L., Hoyt, Taylor J., Lee, Myung Gyoon, Monson, Andrew J., Rich, Jeffrey A., Scowcroft, Victoria, Seibert, Mark

“…Abstract The Carnegie–Chicago Hubble Program (CCHP) is recalibrating the extragalactic SN Ia distance scale using exclusively Population II stars. This effort…”
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The Carnegie-Chicago Hubble Program. II. The Distance to IC 1613: The Tip of the Red Giant Branch and RR Lyrae Period–luminosity Relations by Hatt, Dylan, Beaton, Rachael L., Freedman, Wendy L., Madore, Barry F., Jang, In-Sung, Hoyt, Taylor J., Lee, Myung Gyoon, Monson, Andrew J., Rich, Jeffrey A., Scowcroft, Victoria, Seibert, Mark

“…Abstract IC 1613 is an isolated dwarf galaxy within the Local Group. Low foreground and internal extinction, low metallicity, and low crowding make it an…”
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Coordinated JWST Imaging of Three Distance Indicators in a Supernova Host Galaxy and an Estimate of the Tip of the Red Giant Branch Color Dependence by Hoyt, Taylor J., Jang, In Sung, Freedman, Wendy L., Madore, Barry F., Lee, Abigail J., Owens, Kayla A.

“…Abstract Boasting a 6.5 m mirror in space, JWST can increase by several times the number of supernovae (SNe) to which a redshift-independent distance has been…”
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The Carnegie–Chicago Hubble Program. IX. Calibration of the Tip of the Red Giant Branch Method in the Megamaser Host Galaxy, NGC 4258 (M106) by Jang, In Sung, Hoyt, Taylor J., Beaton, Rachael L., Freedman, Wendy L., Madore, Barry F., Lee, Myung Gyoon, Neeley, Jillian R., Monson, Andrew J., Rich, Jeffrey A., Seibert, Mark

“…Abstract In the nearby galaxy NGC 4258, the well-modeled orbital motion of H 2 O masers about its supermassive black hole provides the means to measure a…”
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The Carnegie-Chicago Hubble Program. VII. The Distance to M101 via the Optical Tip of the Red Giant Branch Method by Beaton, Rachael L., Seibert, Mark, Hatt, Dylan, Freedman, Wendy L., Hoyt, Taylor J., Jang, In Sung, Lee, Myung Gyoon, Madore, Barry F., Monson, Andrew J., Neeley, Jillian R., Rich, Jeffrey A., Scowcroft, Victoria

“…Abstract The Carnegie-Chicago Hubble Program (CCHP) is building a direct path to the Hubble constant ( H 0 ) using Population II stars as the calibrator of the…”
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Standard Galactic field RR Lyrae II: a Gaia DR2 calibration of the period–Wesenheit–metallicity relation by Neeley, Jillian R, Marengo, Massimo, Freedman, Wendy L, Madore, Barry F, Beaton, Rachael L, Hatt, Dylan, Hoyt, Taylor, Monson, Andrew J, Rich, Jeffrey A, Sarajedini, Ata, Seibert, Mark, Scowcroft, Victoria

“…ABSTRACT RR Lyrae stars have long been popular standard candles, but significant advances in methodology and technology have been made in recent years to…”
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The Astrophysical Distance Scale. III. Distance to the Local Group Galaxy WLM Using Multiwavelength Observations of the Tip of the Red Giant Branch, Cepheids, and JAGB Stars by Lee, Abigail J., Freedman, Wendy L., Madore, Barry F., Owens, Kayla A., Monson, Andrew J., Hoyt, Taylor J.

“…The local determination of the Hubble constant sits at a crossroad. Current estimates of the local expansion rate of the universe differ by about 1.7 , derived…”
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The Carnegie Chicago Hubble Program X: Tip of the Red Giant Branch Distances to NGC 5643 and NGC 1404 by Hoyt, Taylor J., Beaton, Rachael L., Freedman, Wendy L., Jang, In Sung, Lee, Myung Gyoon, Madore, Barry F., Monson, Andrew J., Neeley, Jillian R., Rich, Jeffrey A., Seibert, Mark

“…Abstract The primary goal of the Carnegie Chicago Hubble Program (CCHP) is to calibrate the zero-point of the Type Ia supernova (SN Ia) Hubble Diagram through…”
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The Carnegie Chicago Hubble Program. VI. Tip of the Red Giant Branch Distances to M66 and M96 of the Leo I Group by Hoyt, Taylor J., Freedman, Wendy L., Madore, Barry F., Hatt, Dylan, Beaton, Rachael L., Jang, In Sung, Lee, Myung Gyoon, Monson, Andrew J., Neeley, Jillian R., Rich, Jeffrey A., Mager, Violet A.

“…We determine the distances to the Type Ia supernova host galaxies M66 (NGC 3627) and M96 (NGC 3368) of the Leo I Group using the Tip of the Red Giant Branch…”
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Distances to Local Group Galaxies via Population II, Stellar Distance Indicators. II. The Fornax Dwarf Spheroidal by Oakes, Elias K., Hoyt, Taylor J., Freedman, Wendy L., Madore, Barry F., Tran, Quang H., Cerny, William, Beaton, Rachael L., Seibert, Mark

“…Abstract We determine three independent Population II distance moduli to the Fornax dwarf spheroidal (dSph) galaxy, using wide-field, ground-based VI imaging…”
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The Near-infrared Tip of the Red Giant Branch. II. An Absolute Calibration in the Large Magellanic Cloud by Hoyt, Taylor J., Freedman, Wendy L., Madore, Barry F., Seibert, Mark, Beaton, Rachael L., Hatt, Dylan, Jang, In Sung, Lee, Myung Gyoon, Monson, Andrew J., Rich, Jeffrey A.

“…We present a new empirical JHK absolute calibration of the tip of the red giant branch (TRGB) in the Large Magellanic Cloud (LMC). We use published data from…”
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The Carnegie-Chicago Hubble Program. IV. The Distance to NGC 4424, NGC 4526, and NGC 4356 via the Tip of the Red Giant Branch by Hatt, Dylan, Freedman, Wendy L., Madore, Barry F., Beaton, Rachael L., Hoyt, Taylor J., Jang, In Sung, Lee, Myung Gyoon, Monson, Andrew J., Rich, Jeffrey A., Scowcroft, Victoria, Seibert, Mark

“…Abstract The Carnegie-Chicago Hubble Program is undertaking a re-calibration of the extragalactic distance scale, using SNe Ia that are tied to Tip of the Red…”
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Distances to Local Group Galaxies via Population II, Stellar Distance Indicators. I. The Sculptor Dwarf Spheroidal by Tran, Quang H., Hoyt, Taylor J., Freedman, Wendy L., Madore, Barry F., Oakes, Elias K., Cerny, William, Hatt, Dylan, Beaton, Rachael L.

“…Abstract We determine the distance to the Sculptor Dwarf Spheroidal via three Population II stellar distance indicators: (a) the Tip of the Red Giant Branch…”
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The Near-infrared Tip of the Red Giant Branch. I. A Calibration in the Isolated Dwarf Galaxy IC 1613 by Madore, Barry F., Freedman, Wendy L., Hatt, Dylan, Hoyt, Taylor J., Monson, Andrew J., Beaton, Rachael L., Rich, Jeffrey A., Jang, In Sung, Lee, Myung Gyoon, Scowcroft, Victoria, Seibert, Mark

“…Based on observations from the FourStar near-infrared camera on the 6.5 m Baade-Magellan telescope at Las Campanas, Chile, we present calibrations of the JHK…”
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The Astrophysical Distance Scale. V. A 2% Distance to the Local Group Spiral M33 via the JAGB Method, Tip of the Red Giant Branch, and Leavitt Law by Lee, Abigail J., Rousseau-Nepton, Laurie, Freedman, Wendy L., Madore, Barry F., Cioni, Maria-Rosa L., Hoyt, Taylor J., Jang, In Sung, Javadi, Atefeh, Owens, Kayla A.

“…Abstract The J-region asymptotic giant branch (JAGB) method is a new standard candle that is based on the stable intrinsic J -band magnitude of color-selected…”
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The Carnegie-Chicago Hubble Program: Calibration of the Near-infrared RR Lyrae Period-Luminosity Relation with HST by Rich, Jeffrey A., Madore, Barry F., Monson, Andrew J., Freedman, Wendy L., Beaton, Rachael L., Clementini, Gisella, Garofalo, Alessia, Hatt, Dylan, Hoyt, Taylor, Jang, In-Sung, Kollmeier, Juna A., Gyoon Lee, Myung, Neeley, Jillian R., Scowcroft, Victoria, Seibert, Mark

“…We present photometry of 30 Galactic RR Lyrae variables taken with HST WFC3/IR for the Carnegie-Chicago Hubble Program. These measurements form the base of the…”
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