Search Results - "Andrews, Brett H"

Equilibrium and Sudden Events in Chemical Evolution by Weinberg, David H., Andrews, Brett H., Freudenburg, Jenna

“…We present new analytic solutions for one-zone (fully mixed) chemical evolution models that incorporate a realistic delay time distribution for Type Ia…”
Get full text

Inflow, Outflow, Yields, and Stellar Population Mixing in Chemical Evolution Models by Andrews, Brett H., Weinberg, David H., Schönrich, Ralph, Johnson, Jennifer A.

“…Chemical evolution models are powerful tools for interpreting stellar abundance surveys and understanding galaxy evolution. However, their predictions depend…”
Get full text

A recalibration of strong-line oxygen abundance diagnostics via the direct method and implications for the high-redshift universe by Brown, Jonathan S., Martini, Paul, Andrews, Brett H.

“…We use direct method oxygen abundances in combination with strong optical emission lines, stellar masses (M ⋆), and star formation rates (SFRs) to recalibrate…”
Get full text

SDSS-IV MaNGA: evidence of the importance of AGN feedback in low-mass galaxies by Penny, Samantha J, Masters, Karen L, Smethurst, Rebecca, Nichol, Robert C, Krawczyk, Coleman M, Bizyaev, Dmitry, Greene, Olivia, Liu, Charles, Marinelli, Mariarosa, Rembold, Sandro B, Riffel, Rogemar A, Ilha, Gabriele da Silva, Wylezalek, Dominika, Andrews, Brett H, Bundy, Kevin, Drory, Niv, Oravetz, Daniel, Pan, Kaike

“…Abstract We present new evidence for AGN feedback in a subset of 69 quenched low-mass galaxies (M⋆ ≲ 5 × 109 M⊙, Mr > −19) selected from the first 2 yr of the…”
Get full text

SDSS-IV MaNGA: the spatially resolved stellar initial mass function in ∼400 early-type galaxies by Parikh, Taniya, Thomas, Daniel, Maraston, Claudia, Westfall, Kyle B, Goddard, Daniel, Lian, Jianhui, Meneses-Goytia, Sofia, Jones, Amy, Vaughan, Sam, Andrews, Brett H, Bershady, Matthew, Bizyaev, Dmitry, Brinkmann, Jonathan, Brownstein, Joel R, Bundy, Kevin, Drory, Niv, Emsellem, Eric, Law, David R, Newman, Jeffrey A, Roman-Lopes, Alexandre, Wake, David, Yan, Renbin, Zheng, Zheng

“…Abstract Mapping Nearby Galaxies at Apache Point Observatory provides the opportunity to make precise spatially resolved measurements of the IMF slope in…”
Get full text

SDSS-IV MaNGA: identification of active galactic nuclei in optical integral field unit surveys by Wylezalek, Dominika, Zakamska, Nadia L., Greene, Jenny E., Riffel, Rogemar A., Drory, Niv, Andrews, Brett H., Merloni, Andrea, Thomas, Daniel

“…Abstract In this paper, we investigate 2727 galaxies observed by MaNGA as of 2016 June to develop spatially resolved techniques for identifying signatures of…”
Get full text

Signatures of Stellar Accretion in MaNGA Early-type Galaxies by Oyarzún, Grecco A., Bundy, Kevin, Westfall, Kyle B., Belfiore, Francesco, Thomas, Daniel, Maraston, Claudia, Lian, Jianhui, Aragón-Salamanca, Alfonso, Zheng, Zheng, Gonzalez-Perez, Violeta, Law, David R., Drory, Niv, Andrews, Brett H.

“…The late assembly of massive galaxies is thought to be dominated by stellar accretion in their outskirts (beyond two effective radii Re) due to dry, minor…”
Get full text

Optimized Photometric Redshifts for the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS) by Kodra, Dritan, Andrews, Brett H., Newman, Jeffrey A., L. Finkelstein, Steven, Fontana, Adriano, Hathi, Nimish, Salvato, Mara, Wiklind, Tommy, Wuyts, Stijn, Broussard, Adam, Chartab, Nima, Conselice, Christopher, Cooper, M. C., Dekel, Avishai, Dickinson, Mark, Ferguson, Henry C., Gawiser, Eric, Grogin, Norman A., Iyer, Kartheik, Kartaltepe, Jeyhan, Kassin, Susan, Koekemoer, Anton M., Koo, David C., Lucas, Ray A., Mantha, Kameswara Bharadwaj, McIntosh, Daniel H., Mobasher, Bahram, Pacifici, Camilla, Pérez-González, Pablo G., Santini, Paola

“…Abstract We present the first comprehensive release of photometric redshifts (photo - z 's) from the Cosmic Assembly Near-Infrared Deep Extragalactic Legacy…”
Get full text

Improving Photometric Redshift Estimates with Training Sample Augmentation by Moskowitz, Irene, Gawiser, Eric, Crenshaw, John Franklin, Andrews, Brett H., Malz, Alex I., Schmidt, Samuel

“…Abstract Large imaging surveys will rely on photometric redshifts (photo- z 's), which are typically estimated through machine-learning methods. Currently…”
Get full text

SDSS-IV MaNGA: the spectroscopic discovery of strongly lensed galaxies by Talbot, Michael S, Brownstein, Joel R, Bolton, Adam S, Bundy, Kevin, Andrews, Brett H, Cherinka, Brian, Collett, Thomas E, More, Anupreeta, More, Surhud, Sonnenfeld, Alessandro, Vegetti, Simona, Wake, David A, Weijmans, Anne-Marie, Westfall, Kyle B

“…Abstract We present a catalogue of 38 spectroscopically detected strong galaxy–galaxy gravitational lens candidates identified in the Sloan Digital Sky Survey…”
Get full text

The Gas-phase Mass–Metallicity Relation for Massive Galaxies at z ∼ 0.7 with the LEGA-C Survey by Lewis, Zach J., Andrews, Brett H., Bezanson, Rachel, Maseda, Michael, Bell, Eric F., Davé, Romeel, D’Eugenio, Francesco, Franx, Marijn, Gallazzi, Anna, de Graaff, Anna, Kaushal, Yasha, Nersesian, Angelos, Newman, Jeffrey A., van der Wel, Arjen, Wu, Po-Feng

“…Abstract The massive end of the gas-phase mass–metallicity relation (MZR) is a sensitive probe of active galactic nuclei (AGN) feedback that is a crucial but…”
Get full text

DESI Massive Poststarburst Galaxies at z ∼ 1.2 Have Compact Structures and Dense Cores by Zhang, Yunchong, Setton, David J., Price, Sedona H., Bezanson, Rachel, Khullar, Gourav, Newman, Jeffrey A., Aguilar, Jessica Nicole, Ahlen, Steven, Andrews, Brett H., Brooks, David, Claybaugh, Todd, de la Macorra, Axel, Dey, Biprateep, Doel, Peter, Gaztañaga, Enrique, Gontcho A Gontcho, Satya, Greene, Jenny E., Juneau, Stephanie, Kehoe, Robert, Kisner, Theodore, Kriek, Mariska, Leja, Joel, Manera, Marc, Meisner, Aaron, Miquel, Ramon, Moustakas, John, Prada, Francisco, Rossi, Graziano, Sanchez, Eusebio, Schubnell, Michael, Siudek, Małgorzata, Spilker, Justin, Sprayberry, David, Suess, Katherine A., Tarlé, Gregory, Zou, Hu

“…Abstract Poststarburst galaxies (PSBs) are young quiescent galaxies that have recently experienced a rapid decrease in star formation, allowing us to probe the…”
Get full text

THE MASS-METALLICITY RELATION WITH THE DIRECT METHOD ON STACKED SPECTRA OF SDSS GALAXIES by Andrews, Brett H, Martini, Paul

“…The relation between galaxy stellar mass and gas-phase metallicity is a sensitive diagnostic of the main processes that drive galaxy evolution, namely…”
Get full text

DESI Survey Validation Spectra Reveal an Increasing Fraction of Recently Quenched Galaxies at z ∼ 1 by Setton, David J., Dey, Biprateep, Khullar, Gourav, Bezanson, Rachel, Newman, Jeffrey A., Aguilar, Jessica N., Ahlen, Steven, Andrews, Brett H., Brooks, David, de la Macorra, Axel, Dey, Arjun, Eftekharzadeh, Sarah, Font-Ribera, Andreu, A Gontcho, Satya Gontcho, Kremin, Anthony, Juneau, Stephanie, Landriau, Martin, Meisner, Aaron, Miquel, Ramon, Moustakas, John, Pearl, Alan, Prada, Francisco, Tarlé, Gregory, Siudek, Małgorzata, Weaver, Benjamin Alan, Zhou, Zhimin, Zou, Hu

“…Abstract We utilize ∼17,000 bright luminous red galaxies (LRGs) from the novel Dark Energy Spectroscopic Instrument Survey Validation spectroscopic sample,…”
Get full text

SDSS-IV MaNGA: radial gradients in stellar population properties of early-type and late-type galaxies by Parikh, Taniya, Thomas, Daniel, Maraston, Claudia, Westfall, Kyle B, Andrews, Brett H, Boardman, Nicholas Fraser, Drory, Niv, Oyarzun, Grecco

“…ABSTRACT We derive ages, metallicities, and individual element abundances of early- and late-type galaxies (ETGs and LTGs) out to 1.5 Re. We study a large…”
Get full text

Empirically Driven multiwavelength K-corrections at low redshift by Fielder, Catherine E, Andrews, Brett H, Newman, Jeffrey, Salim, Samir

“…ABSTRACT K-corrections – a necessary ingredient for converting between flux in observed bands to flux in rest-frame bands – are critical for comparing galaxies…”
Get full text

SDSS-IV MaNGA: local and global chemical abundance patterns in early-type galaxies by Parikh, Taniya, Thomas, Daniel, Maraston, Claudia, Westfall, Kyle B, Lian, Jianhui, Fraser-McKelvie, Amelia, Andrews, Brett H, Drory, Niv, Meneses-Goytia, Sofia

Get full text

SDSS-IV MaNGA: spatially resolved star formation in barred galaxies by Fraser-McKelvie, Amelia, Aragón-Salamanca, Alfonso, Merrifield, Michael, Masters, Karen, Nair, Preethi, Emsellem, Eric, Kraljic, Katarina, Krishnarao, Dhanesh, Andrews, Brett H, Drory, Niv, Neumann, Justus

“…ABSTRACT Bars inhabit the majority of local-Universe disc galaxies and may be important drivers of galaxy evolution through the redistribution of gas and…”
Get full text

SDSS-IV MaNGA: Refining Strong Line Diagnostic Classifications Using Spatially Resolved Gas Dynamics by Law, David R., Ji, Xihan, Belfiore, Francesco, Bershady, Matthew A., Cappellari, Michele, Westfall, Kyle B., Yan, Renbin, Bizyaev, Dmitry, Brownstein, Joel R., Drory, Niv, Andrews, Brett H.

“…Abstract We use the statistical power of the MaNGA integral-field spectroscopic galaxy survey to improve the definition of strong line diagnostic boundaries…”
Get full text

CHEMICAL CARTOGRAPHY WITH APOGEE: METALLICITY DISTRIBUTION FUNCTIONS AND THE CHEMICAL STRUCTURE OF THE MILKY WAY DISK by Hayden, Michael R., Bovy, Jo, Holtzman, Jon A., Nidever, David L., Bird, Jonathan C., Weinberg, David H., Andrews, Brett H., Majewski, Steven R., Prieto, Carlos Allende, Anders, Friedrich, Beers, Timothy C., Bizyaev, Dmitry, Chiappini, Cristina, Cunha, Katia, Frinchaboy, Peter, García-Her andez, D. A., García Pérez, Ana E., Girardi, Léo, Harding, Paul, Hearty, Fred R., Johnson, Jennifer A., Mészáros, Szabolcs, Minchev, Ivan, O'Connell, Robert, Pan, Kaike, Robin, Annie C., Schiavon, Ricardo P., Schneider, Donald P., Schultheis, Mathias, Shetrone, Matthew, Skrutskie, Michael, Steinmetz, Matthias, Smith, Verne, Wilson, John C., Zamora, Olga, Zasowski, Gail

“…ABSTRACT Using a sample of 69,919 red giants from the SDSS-III/APOGEE Data Release 12, we measure the distribution of stars in the [ /Fe] versus [Fe/H] plane…”
Get full text