Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Neeley Jillian"'
Autor:
Marengo Massimo, Neeley Jillian, Bono Giuseppe, Braga Vittorio, Dall’Ora Massimo, Marconi Marcella, Trueba Nicolas, Magurno Davide
Publikováno v:
EPJ Web of Conferences, Vol 152, p 07004 (2017)
We present our project to calibrate the RR Lyræ period-luminosity-metallicity relation using a sample of Galactic calibrators in the halo and globular clusters.
Externí odkaz:
https://doaj.org/article/e18d152ef0214054acaa371ecc23f6f5
Autor:
Mullen, Joseph P., Marengo, Massimo, Martínez-Vázquez, Clara E., Bono, Giuseppe, Braga, Vittorio F., Chaboyer, Brian, Crestani, Juliana, Dall'Ora, Massimo, Fabrizio, Michele, Fiorentino, Giuliana, Monelli, Matteo, Neeley, Jillian R., Stetson, Peter B., Thévenin, Frédéric
We present new period-$\phi_{31}$-[Fe/H] relations for first overtone RRL stars (RRc), calibrated over a broad range of metallicities ($-2.5 < \textrm{[Fe/H]}< 0.0$) utilizing the largest currently available set of Galactic halo field RRL with homoge
Externí odkaz:
http://arxiv.org/abs/2204.07627
Autor:
Mullen, Joseph P., Marengo, Massimo, Martínez-Vázquez, Clara E., Neeley, Jillian R., Bono, Giuseppe, Dall'Ora, Massimo, Chaboyer, Brian, Thévenin, Frédéric, Braga, Vittorio F., Crestani, Juliana, Fabrizio, Michele, Fiorentino, Giuliana, Gilligan, Christina K., Monelli, Matteo, Stetson, Peter B.
We present newly-calibrated period-$\phi_{31}$-[Fe/H] relations for fundamental mode RR Lyrae stars in the optical and, for the first time, mid-infrared. This work's calibration dataset provides the largest and most comprehensive span of parameter sp
Externí odkaz:
http://arxiv.org/abs/2103.09372
Autor:
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, Jeffery A., Seibert, Mark
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 the use of Population II standard candles. So far, the CCHP has measured direct distances to 11 SNe
Externí odkaz:
http://arxiv.org/abs/2101.12232
Autor:
Jang, In Sung, Hoyt, Taylor, Beaton, Rachael, Freedman, Wendy L., Madore, Barry F., Lee, Myung Gyoon, Neeley, Jillian R., Monson, Andrew J., Rich, Jeffrey A., Seibert, Mark
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 precise geometric distance. As a result, NGC 4258 is one of a few "geometric anchors" available to calib
Externí odkaz:
http://arxiv.org/abs/2008.04181
Autor:
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
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 (optical $UBVR_cI_c$ and Gai
Externí odkaz:
http://arxiv.org/abs/1910.01773
Autor:
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 SN Ia-based distance scale. This path to calibrate the SN Ia is independent of the systematics in the
Externí odkaz:
http://arxiv.org/abs/1908.06120
Autor:
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, Mark M., Rich, Jeffrey A., Seibert, Mark
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 (TRGB) applied to Type Ia supernovae (SNeIa). We find a value of Ho = 69.8 +/- 0.8 (+/-1.1\% stat) +/-
Externí odkaz:
http://arxiv.org/abs/1907.05922
Autor:
Hoyt, Taylor J., Freedman, Wendy L., Madore, Barry F., Beaton, Rachael L., Hatt, Dylan, 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 (TRGB) method. We target the stellar halos of these galaxies using the Hubble Space Telescope
Externí odkaz:
http://arxiv.org/abs/1907.05891
Autor:
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., Lee, Myung Gyoon, Neeley, Jillian R., Scowcroft, Victoria, Seibert, Mark
Publikováno v:
ApJ 2018, Volume 869, Number 1
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 to a measurement of H
Externí odkaz:
http://arxiv.org/abs/1812.06053