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Results: 903
The Carnegie RR Lyrae Program
Tatiana Muraveva, Alessia Garofalo, Victoria Scowcroft, Gisella Clementini, Wendy L. Freedman, Barry F. Madore, Andrew J. Monson
Nov 30, 2018
We analysed 30 RR Lyrae stars (RRLs) located in the Large Magellanic Cloud (LMC) globular cluster Reticulum that were observed in the 3.6 and 4.5 $\mu$m passbands with the Infrared Array Camera (IRAC) on board of the Spitzer...
Standard Galactic Field RR Lyrae II
Jillian R. Neeley, Massimo Marengo, Wendy L. Freedman, Barry F. Madore, Rachael L. Beaton, Dylan Hatt, Andrew J. Monson, Jeffrey A. Rich, Ata Sarajedini, Mark Seibert, Victoria Scowcroft
Dec 31, 2019
RR Lyrae stars have long been popular standard candles, but significant advances in methodology and technology have been made in recent years to increase their precision as distance indicators. We present multi-wavelength...
The Carnegie RR Lyrae Program
Tatiana Muraveva, Alessia Garofalo, Victoria Scowcroft, Gisella Clementini, Wendy L. Freedman, Barry F. Madore, Andrew J. Monson
Nov 30, 2018
We analysed 30 RR Lyrae stars (RRLs) located in the Large Magellanic Cloud (LMC) globular cluster Reticulum that were observed in the 3.6 and 4.5 $\mu$m passbands with the Infrared Array Camera (IRAC) on board of the Spitzer...
Standard Galactic Field RR Lyrae II
Jillian R. Neeley, Massimo Marengo, Wendy L. Freedman, Barry F. Madore, Rachael L. Beaton, Dylan Hatt, Andrew J. Monson, Jeffrey A. Rich, Ata Sarajedini, Mark Seibert, Victoria Scowcroft
Dec 31, 2019
RR Lyrae stars have long been popular standard candles, but significant advances in methodology and technology have been made in recent years to increase their precision as distance indicators. We present multi-wavelength...
First Results on RR Lyrae Stars with the TESS Space Telescope
Abstract
The Transiting Exoplanet Survey Satellite (TESS) space telescope is collecting continuous, high-precision optical photometry of stars throughout the sky, including...
L Molnár, A Bódi, A Pál, A Bhardwaj, F–J Hambsch, JM Benkő, A Derekas, M Ebadi, M Joyce, A Hasanzadeh, K Kolenberg, MB Lund, JM Nemec, H Netzel, C–C Ngeow, J Pepper, E Plachy, Z Prudil, RJ Siverd, M Skarka, R Smolec, Á Sódor, S Sylla, P Szabó, R Szabó, H Kjeldsen, J Christensen-Dalsgaard, GR Ricker
Jan 07, 2022
The Carnegie-Chicago Hubble Program
Jeffrey A. Rich, Barry F. Madore, Andrew J. Monson, Wendy L. Freedman, Rachael L. Beaton, Gisella Clementini, Alessia Garofalo, Dylan Hatt, Taylor Hoyt, In-sung Jang, Juna A. Kollmeier, Myung Gyoon Lee, Jillian R. Neeley, Victoria Scowcroft, Mark Seibert
Dec 13, 2018
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 distance-ladder measurements that comprise a pure Population II base...
The Hubble Space Telescope Survey of M31 Satellite Galaxies. I. RR Lyrae–based Distances and Refined 3D Geometric Structure
Abstract
We measure homogeneous distances to M31 and 38 associated stellar systems (−16.8 ≤ M
...
A Savino, DR Weisz, ED Skillman, A Dolphin, N Kallivayalil, A Wetzel, J Anderson, G Besla, M Boylan-Kolchin, JS Bullock, AA Cole, MLM Collins, MC Cooper, AJ Deason, AL Dotter, M Fardal, AMN Ferguson, TK Fritz, MC Geha, KM Gilbert, P Guhathakurta, R Ibata, MJ Irwin, M Jeon, E Kirby, GF Lewis, D Mackey, SR Majewski, N Martin, A McConnachie, E Patel, R Michael Rich, JD Simon, ST Sohn, EJ Tollerud, RP van der Marel
Oct 18, 2022
SMHASH
David Hendel, Victoria Scowcroft, Kathryn V. Johnston, Mark A. Fardal, Roeland P. van der Marel, Sangmo Tony Sohn, Adrian M. Price-Whelan, Rachael L. Beaton, Gurtina Besla, Giuseppe Bono, Maria-Rosa L. Cioni, Gisella Clementini, Judith G. Cohen, Michele Fabrizio, Wendy L. Freedman, Alessia Garofalo, Carl J. Grillmair, Nitya Kallivayalil, Juna A. Kollmeier, David R. Law, Barry F. Madore, Steven R. Majewski, Massimo Marengo, Andrew J. Monson, Jillian R. Neeley, David L. Nidever, Grzegorz Pietrzyński, Mark Seibert, Branimir Sesar, Horace A. Smith, Igor Soszyński, Andrezej Udalski
Sep 30, 2018
Stellar tidal streams provide an opportunity to study the motion and structure of the disrupting galaxy as well as the gravitational potential of its host. Streams around the Milky Way are especially promising as phase space...
SMHASH
David Hendel, Victoria Scowcroft, Kathryn V. Johnston, Mark A. Fardal, Roeland P. van der Marel, Sangmo Tony Sohn, Adrian M. Price-Whelan, Rachael L. Beaton, Gurtina Besla, Giuseppe Bono, Maria-Rosa L. Cioni, Gisella Clementini, Judith G. Cohen, Michele Fabrizio, Wendy L. Freedman, Alessia Garofalo, Carl J. Grillmair, Nitya Kallivayalil, Juna A. Kollmeier, David R. Law, Barry F. Madore, Steven R. Majewski, Massimo Marengo, Andrew J. Monson, Jillian R. Neeley, David L. Nidever, Grzegorz Pietrzyński, Mark Seibert, Branimir Sesar, Horace A. Smith, Igor Soszyński, Andrezej Udalski
Sep 30, 2018
Stellar tidal streams provide an opportunity to study the motion and structure of the disrupting galaxy as well as the gravitational potential of its host. Streams around the Milky Way are especially promising as phase space...
The Carnegie-Chicago Hubble Program
Jeffrey A. Rich, Barry F. Madore, Andrew J. Monson, Wendy L. Freedman, Rachael L. Beaton, Gisella Clementini, Alessia Garofalo, Dylan Hatt, Taylor Hoyt, In-sung Jang, Juna A. Kollmeier, Myung Gyoon Lee, Jillian R. Neeley, Victoria Scowcroft, Mark Seibert
Dec 13, 2018
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 distance-ladder measurements that comprise a pure Population II base...
Standard Galactic Field RR Lyrae. I. Optical to Mid-infrared Phased Photometry
Andrew J. Monson, Rachael L. Beaton, Victoria Scowcroft, Wendy L. Freedman, Barry F. Madore, Jeffrey A. Rich, Mark Seibert, Juna A. Kollmeier, Gisella Clementini
Mar 01, 2017
We present a multi-wavelength compilation of new and previously published photometry for 55 Galactic field RR Lyrae variables. Individual studies, spanning a time baseline of up to 30 years, are self-consistently phased to...
Standard Galactic Field RR Lyrae. I. Optical to Mid-infrared Phased Photometry
Andrew J. Monson, Rachael L. Beaton, Victoria Scowcroft, Wendy L. Freedman, Barry F. Madore, Jeffrey A. Rich, Mark Seibert, Juna A. Kollmeier, Gisella Clementini
Mar 01, 2017
We present a multi-wavelength compilation of new and previously published photometry for 55 Galactic field RR Lyrae variables. Individual studies, spanning a time baseline of up to 30 years, are self-consistently phased to...
SDSS-II SUPERNOVA SURVEY
RC Wolf, CB D'Andrea, RR Gupta, M Sako, JA Fischer, R Kessler, SW Jha, MC March, DM Scolnic, JL Fischer, H Campbell, RC Nichol, MD Olmstead, M Richmond, DP Schneider, M Smith
Jul 19, 2016
Protoplanetary Disks as (Possibly) Viscous Disks
RR Rafikov
Sep 02, 2019
Protoplanetary disks are believed to evolve on Myr timescales in a diffusive
(viscous) manner as a result of angular momentum transport driven by internal
stresses. Here we use a sample of 26 protoplanetary disks resolved by...
SMHASH
Alessia Garofalo, Victoria Scowcroft, Gisella Clementini, Kathryn V. Johnston, Judith G. Cohen, Wendy L. Freedman, Barry F. Madore, Steven R. Majewski, Andrew J. Monson, Jillian R. Neeley, Carl J. Grillmair, David Hendel, Nitya Kallivayalil, Massimo Marengo, Roeland van der Marel
Nov 21, 2018
We present a new distance estimation for the Milky Way dwarf spheroidal satellite Sculptor obtained from multi-epoch mid-infrared observations of RR Lyrae stars (RRLs). The 3.6 μm observations have been acquired with the...
SMHASH
Alessia Garofalo, Victoria Scowcroft, Gisella Clementini, Kathryn V. Johnston, Judith G. Cohen, Wendy L. Freedman, Barry F. Madore, Steven R. Majewski, Andrew J. Monson, Jillian R. Neeley, Carl J. Grillmair, David Hendel, Nitya Kallivayalil, Massimo Marengo, Roeland van der Marel
Nov 21, 2018
We present a new distance estimation for the Milky Way dwarf spheroidal satellite Sculptor obtained from multi-epoch mid-infrared observations of RR Lyrae stars (RRLs). The 3.6 μm observations have been acquired with the...
Brazilian Mangroves
Mangroves are known for large carbon stocks and high sequestration rates in biomass and soils, making these intertidal wetlands a cost-effective strategy for some nations to compensate for a portion of their carbon...
On a New Theoretical Framework for RR Lyrae Stars. II. Mid-infrared Period-Luminosity-Metallicity Relations
Jillian R. Neeley, Massimo Marengo, Giuseppe Bono, Vittorio F. Braga, Massimo Dall'ora, Davide Magurno, Marcella Marconi, Nicolas Trueba, Emanuele Tognelli, Pier G.Prada Moroni, Rachael L. Beaton, Wendy L. Freedman, Barry F. Madore, Andrew J. Monson, Victoria Scowcroft, Mark Seibert, Peter B. Stetson
Jun 01, 2017
We present new theoretical period-luminosity-metallicity (PLZ) relations for RR Lyræ stars (RRLs) at Spitzer and WISE wavelengths. The PLZ relations were derived using nonlinear, time-dependent convective hydrodynamical...
Secular dynamics of binaries in stellar clusters - II. Dynamical evolution
Dense stellar clusters are natural sites for the origin and evolution of
exotic objects such as relativistic binaries (potential gravitational wave
sources), blue stragglers, etc. We investigate the secular dynamics of a...
On a New Theoretical Framework for RR Lyrae Stars. II. Mid-infrared Period-Luminosity-Metallicity Relations
Jillian R. Neeley, Massimo Marengo, Giuseppe Bono, Vittorio F. Braga, Massimo Dall'ora, Davide Magurno, Marcella Marconi, Nicolas Trueba, Emanuele Tognelli, Pier G.Prada Moroni, Rachael L. Beaton, Wendy L. Freedman, Barry F. Madore, Andrew J. Monson, Victoria Scowcroft, Mark Seibert, Peter B. Stetson
Jun 01, 2017
We present new theoretical period-luminosity-metallicity (PLZ) relations for RR Lyræ stars (RRLs) at Spitzer and WISE wavelengths. The PLZ relations were derived using nonlinear, time-dependent convective hydrodynamical...
Anatomy of a Slow Merger
Abstract
The dozens of compact object mergers detected by LIGO/Virgo raise a key theoretical question: how do initially wide binaries shrink sufficiently quickly that they are able...
Risk of uveitis and inflammatory bowel disease in people with psoriatic arthritis
Rachel Charlton, Amelia Green, Gavin Shaddick, Julia Snowball, Alison Nightingale, William Tillett, Catherine Smith, Neil McHugh
Jan 12, 2018
Objectives: To determine the risk of uveitis and inflammatory bowel disease (IBD) in patients with psoriatic arthritis (PsA) compared with the general population and patients with psoriasis. Methods: A cohort study using data...
Risk of uveitis and inflammatory bowel disease in people with psoriatic arthritis
Rachel Charlton, Amelia Green, Gavin Shaddick, Julia Snowball, Alison Nightingale, William Tillett, Catherine Smith, Neil McHugh
Jan 12, 2018
Objectives: To determine the risk of uveitis and inflammatory bowel disease (IBD) in patients with psoriatic arthritis (PsA) compared with the general population and patients with psoriasis. Methods: A cohort study using data...
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