Search Results - "Monson, Andrew J."

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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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 CARNEGIE-CHICAGO HUBBLE PROGRAM. I. AN INDEPENDENT APPROACH TO THE EXTRAGALACTIC DISTANCE SCALE USING ONLY POPULATION II DISTANCE INDICATORS by Beaton, Rachael L., Freedman, Wendy L., Madore, Barry F., Bono, Giuseppe, Carlson, Erika K., Clementini, Gisella, Durbin, Meredith J., Garofalo, Alessia, Hatt, Dylan, Jang, In Sung, Kollmeier, Juna A., Lee, Myung Gyoon, Monson, Andrew J., Rich, Jeffrey A., Scowcroft, Victoria, Seibert, Mark, Sturch, Laura, Yang, Soung-Chul

“…ABSTRACT We present an overview of the Carnegie-Chicago Hubble Program, an ongoing program to obtain a 3% measurement of the Hubble constant ( H 0 ) using…”
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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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On a New Theoretical Framework for RR Lyrae Stars. II. Mid-infrared Period-Luminosity-Metallicity Relations by Neeley, Jillian R., Marengo, Massimo, Bono, Giuseppe, Braga, Vittorio F., Dall'Ora, Massimo, Magurno, Davide, Marconi, Marcella, Trueba, Nicolas, Tognelli, Emanuele, Moroni, Pier G. Prada, Beaton, Rachael L., Freedman, Wendy L., Madore, Barry F., Monson, Andrew J., Scowcroft, Victoria, Seibert, Mark, Stetson, Peter B.

“…We present new theoretical period-luminosity-metallicity (PLZ) relations for RR Lyræ stars (RRLs) at Spitzer and WISE wavelengths. The PLZ relations were…”
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Resolved Near-infrared Stellar Photometry from the Magellan Telescope for 13 Nearby Galaxies: J-region Asymptotic Giant Branch Method Distances by Lee, Abigail J., Monson, Andrew J., Freedman, Wendy L., Madore, Barry F., Owens, Kayla A., Beaton, Rachael L., Espinoza, Coral, Ren, Tongtian, Ren, Yi

“…Abstract We present near-infrared JHK photometry for the resolved stellar populations in 13 nearby galaxies: NGC 6822, IC 1613, NGC 3109, Sextans B, Sextans A,…”
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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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A NEW CEPHEID DISTANCE MEASUREMENT AND METHOD FOR NGC 6822 by Rich, Jeffrey A, Persson, S E, Freedman, Wendy L, Madore, Barry F, Monson, Andrew J, Scowcroft, Victoria, Seibert, Mark

“…We present a revised distance to the nearby galaxy NGC 6822 using a new multi-band fit to both previously published and new optical, near-, and mid-infrared…”
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SPIRITS 15c and SPIRITS 14buu: Two Obscured Supernovae in the Nearby Star-forming Galaxy IC 2163 by Jencson, Jacob E., Kasliwal, Mansi M., Johansson, Joel, Contreras, Carlos, Castellón, Sergio, Bond, Howard E., Monson, Andrew J., Masci, Frank J., Cody, Ann Marie, Andrews, Jennifer E., Bally, John, Cao, Yi, Fox, Ori D., Gburek, Timothy, Gehrz, Robert D., Green, Wayne, Helou, George, Hsiao, Eric, Morrell, Nidia, Phillips, Mark, Prince, Thomas A., Simcoe, Robert A., Smith, Nathan, Tinyanont, Samaporn, Williams, Robert

“…SPitzer InfraRed Intensive Transients Survey-SPIRITS-is an ongoing survey of nearby galaxies searching for infrared (IR) transients with Spitzer/IRAC. We…”
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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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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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The Carnegie RR Lyrae Program: mid-infrared period–luminosity relations of RR Lyrae stars in Reticulum by Muraveva, Tatiana, Garofalo, Alessia, Scowcroft, Victoria, Clementini, Gisella, Freedman, Wendy L, Madore, Barry F, Monson, Andrew J

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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 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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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 Carnegie Chicago Hubble Program: the mid-infrared colours of Cepheids and the effect of metallicity on the CO band-head at 4.6 μm by Scowcroft, Victoria, Seibert, Mark, Freedman, Wendy L., Beaton, Rachael L., Madore, Barry F., Monson, Andrew J., Rich, Jeffrey A., Rigby, Jane R.

“…We compare mid-infrared (IR) 3.6 and 4.5 μm Warm Spitzer observations for Cepheids in the Milky Way and the Large and Small Magellanic Clouds. Using models, we…”
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