Search Results - "SCOWCROFT, Victoria"

CARNEGIE HUBBLE PROGRAM: A MID-INFRARED CALIBRATION OF THE HUBBLE CONSTANT by FREEDMAN, Wendy L, MADORE, Barry F, SCOWCROFT, Victoria, BURNS, Chris, MONSON, Andy, PERSSON, S. Eric, SEIBERT, Mark, RIGBY, Jane

“…Using a mid-infrared calibration of the Cepheid distance scale based on recent observations at 3.6 mu m with the Spitzer Space Telescope, we have obtained a…”
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THE CARNEGIE HUBBLE PROGRAM: THE DISTANCE AND STRUCTURE OF THE SMC AS REVEALED BY MID-INFRARED OBSERVATIONS OF CEPHEIDS by Scowcroft, Victoria, Freedman, Wendy L., Madore, Barry F., Monson, Andy, Persson, S. E., Rich, Jeff, Seibert, Mark, Rigby, Jane R.

“…ABSTRACT Using Spitzer observations of classical Cepheids we have measured the true average distance modulus of the Small Magellanic Cloud (SMC) to be mag…”
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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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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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A PRELIMINARY CALIBRATION OF THE RR LYRAE PERIOD–LUMINOSITY RELATION AT MID-INFRARED WAVELENGTHS: WISE DATA by Madore, Barry F., Hoffman, Douglas, Freedman, Wendy L., Kollmeier, Juna A., Monson, Andy, Eric Persson, S., Rich, Jeff A., Scowcroft, Victoria, Seibert, Mark

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THE CARNEGIE HUBBLE PROGRAM: THE INFRARED LEAVITT LAW IN IC 1613 by Scowcroft, Victoria, Freedman, Wendy L., Madore, Barry F., Monson, Andrew J., Persson, S. E., Seibert, Mark, Rigby, Jane R., Melbourne, Jason

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The mid-infrared Leavitt law for classical Cepheids in the Magellanic Clouds by Chown, Abigail H, Scowcroft, Victoria, Wuyts, Stijn

“…ABSTRACT The Cepheid Leavitt Law (LL), also known as the Period–Luminosity relation, is a crucial tool for assembling the cosmic distance ladder. By combining…”
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THE CARNEGIE HUBBLE PROGRAM: THE LEAVITT LAW AT 3.6 Delta mm AND 4.5 Delta mm IN THE LARGE MAGELLANIC CLOUD by Scowcroft, Victoria

“…The Carnegie Hubble Program is designed to improve the extragalactic distance scale using data from the post-cryogenic era of Spitzer. The ultimate goal is a…”
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Changing CO bands in near-IR spectra of CP Cephei by Call, Scott G, Hintz, Eric G, Ardern, Steve, Scowcroft, Victoria, Morrell, Timothy D

“…ABSTRACT We present time-series near-infrared spectra for the classical Cepheid, CP Cephei, from the Astrophysical Research Consortium 3.5-m telescope and…”
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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. 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 Carnegie-Chicago Hubble Program. VII. The Distance to M101 via the Optical Tip of the Red Giant Branch Method Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. These observations are associated with programs GO13691, GO14166, GO13737, and GO13364 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

“…The Carnegie-Chicago Hubble Program (CCHP) is building a direct path to the Hubble constant (H0) using Population II stars as the calibrator of the Type Ia…”
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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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Case Study of Developing an Affordable Undergraduate Observatory by Scowcroft, Victoria, Davies, Steve R, Mathlin, Gary, Sloan, Peter A

“…Astronomy is one of the few sciences where the data (star-light) can be seen by all. Yet, there is a disconnect between a typical undergraduate lecture and,…”
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