Galaxy Zoo: Bars in Disk Galaxies (2010)
Masters, Karen L., Nichol, Robert C., Hoyle, Ben, Lintott, Chris, Bamford, Steven, Edmondson, Edward M., ...
We present first results from Galaxy Zoo 2, the second phase of the highly successful Galaxy Zoo project (www.galaxyzoo.org). Using a volume-limited sample of 13665 disk galaxies (0.01< z < 0.06 and...
Demography of SDSS early-type galaxies from the perspective of radial color gradients (2010)
Suh, Hyewon, Jeong, Hyunjin, Oh, Kyuseok, Yi, Sukyoung K., Ferreras, Ignacio, Schawinski, Kevin
We have investigated the radial g-r color gradients of early-type galaxies in the Sloan Digital Sky Survey (SDSS) DR6 in the redshift range 0.00
Do AGN suppress star formation in early-type galaxies? (2010)
The observation that AGN host galaxies preferentially inhabit the "green valley" between the blue cloud and the red sequence has significant consequences for our understanding of the co-evolution of...
Black hole growth and host galaxy morphology (2010)
Schawinski, Kevin, Urry, C. Megan, Virani, Shanil, Coppi, Paolo, Bamford, Steven P., Treister, Ezequiel, ...
We use data from large surveys of the local Universe (SDSS+Galaxy Zoo) to show that the galaxy-black hole connection is linked to host morphology at a fundamental level. The fraction of early-type...
Schawinski, Kevin, Urry, C. Megan, Virani, Shanil, Coppi, Paolo, Bamford, Steven P., Treister, Ezequiel, ...
We use data from the Sloan Digital Sky Survey and visual classifications of morphology from the Galaxy Zoo project to study black hole growth in the nearby Universe (z < 0.05) and to break down the...
Galaxy Zoo: Dust in Spirals (2010)
Masters, Karen L., Nichol, Robert C., Bamford, Steven, Mosleh, Moein, Lintott, Chris J., Andreescu, Dan, ...
We investigate the effect of dust on spiral galaxies by measuring the inclination-dependence of optical colours for 24,276 well-resolved SDSS galaxies visually classified in Galaxy Zoo. We find clear...
Environment and self-regulation in galaxy formation (2009)
Thomas, Daniel, Maraston, Claudia, Schawinski, Kevin, Sarzi, Marc, Silk, Joseph
The environment is known to affect the formation and evolution of galaxies considerably best visible through the well-known morphology-density relationship. In this paper we study the effect of...
Sarzi, Marc, Shields, Joseph C., Schawinski, Kevin, Jeong, Hyunjin, Shapiro, Kristen, Bacon, Roland, ...
Following our study on the incidence, morphology and kinematics of the ionised gas in early-type galaxies we now address the question of what is powering the observed nebular emission. To constrain...
Galaxy Zoo: Passive Red Spirals (2009)
Masters, Karen L., Mosleh, Moein, Romer, A. Kathy, Nichol, Robert C., Bamford, Steven P., Schawinski, Kevin, ...
We study the spectroscopic properties and environments of red spiral galaxies found by the Galaxy Zoo project. By carefully selecting face-on, disk dominated spirals we construct a sample of truly...
Galaxy Zoo: Exploring the Motivations of Citizen Science Volunteers (2009)
Raddick, M. Jordan, Bracey, Georgia, Gay, Pamela L., Lintott, Chris J., Murray, Phil, Schawinski, Kevin, ...
The Galaxy Zoo citizen science website invites anyone with an Internet connection to participate in research by classifying galaxies from the Sloan Digital Sky Survey. As of April 2009, more than...
We present a general picture of the ongoing formation and evolution of early-type galaxies via a specific evolutionary sequence starting in the blue cloud and ending in the low-mass end of the red...
Galaxy Zoo: Reproducing Galaxy Morphologies Via Machine Learning (2009)
Banerji, Manda, Lahav, Ofer, Lintott, Chris J., Abdalla, Filipe B., Schawinski, Kevin, Andreescu, Dan, ...
We present morphological classifications obtained using machine learning for objects in SDSS DR7 that have been classified by Galaxy Zoo into three classes namely spirals, ellipticals and...
Galaxy Zoo Green Peas: Discovery of A Class of Compact Extremely Star-Forming Galaxies (2009)
Cardamone, Carolin N., Schawinski, Kevin, Sarzi, Marc, Bamford, Steven P., Bennert, Nicola, Urry, C. M., ...
We investigate a class of rapidly growing emission line galaxies, known as "Green Peas", first noted by volunteers in the Galaxy Zoo project because of their peculiar bright green colour and small...
Galaxy Zoo : 'Hanny's Voorwerp', a quasar light echo? (2009)
Lintott, Chris, Schawinski, Kevin, Keel, William, Van Arkel, Hanny, Bennert, Nicola, Edmondson, Edward, ...
We report the discovery of an unusual object near the spiral galaxy IC 2497, discovered by visual inspection of the Sloan Digital Sky Survey (SDSS) as part of the Galaxy Zoo project. The object,...
Jimenez, Raul, Slosar, Anze, Verde, Licia, Bamford, Steven, Lintott, Chris, Schawinski, Kevin, ...
We report on the finding of a correlation between galaxies' past star formation activity and the degree to which neighbouring galaxies rotation axes are aligned. This is obtained by cross-correlating...
The time delay between the formation of the progenitor systems of Type Ia supernovae (SNe Ia) and their detonation is a vital discriminant between the various progenitor scenarios that have been...
Galaxy Zoo: A sample of blue early-type galaxies at low redshift (2009)
Schawinski, Kevin, Lintott, Chris, Thomas, Daniel, Sarzi, Marc, Andreescu, Dan, Bamford, Steven P., ...
We report the discovery of a population of nearby, blue early-type galaxies with high star formation rates (0.5 < SFR < 50 Msun/yr). They are identified by their visual morphology as provided by...
Do Moderate-Luminosity Active Galactic Nuclei Suppress Star Formation? (2009)
Schawinski, Kevin, Virani, Shanil, Simmons, Brooke, Urry, C. Megan, Treister, Ezequiel, Kaviraj, Sugata, ...
The growth of supermassive black holes and their host galaxies are thought to be linked, but the precise nature of this symbiotic relationship is still poorly understood. Both observations and...
Schawinski, Kevin, Lintott, Chris J., Thomas, Daniel, Kaviraj, Sugata, Viti, Serena, Silk, Joseph, ...
Residual star formation at late times in early-type galaxies and their progenitors must be suppressed in order to explain the population of red, passively evolving systems we see today. Likewise,...
Revealing Hanny's Voorwerp: radio observations of IC 2497 (2009)
Jozsa, Gyula I. G., Garrett, M. A., Oosterloo, Tom, Rampadarath, H., Paragi, Zsolt, Van Arkel, H., ...
We present multi-wavelength radio observations in the direction of the spiral galaxy IC 2497 and the neighbouring emission nebula known as "Hanny's Voorwerp". Our WSRT continuum observations at 1.4...
Galaxy Zoo: a sample of blue early-type galaxies at low redshift (2009)
Schawinski, Kevin, Lintott, Chris, Thomas, Daniel, Sarzi, Marc, Andreescu, Dan, Bamford, Steven P., ...
Revealing Hanny's Voorwerp: radio observations of IC 2497 (2009)
Jozsa, Gyula I. G., Garrett, M. A., Oosterloo, Tom, Rampadarath, H., Paragi, Zsolt, Van Arkel, H., ...
We present multi-wavelength radio observations in the direction of the spiral galaxy IC 2497 and the neighbouring emission nebula known as "Hanny's Voorwerp". Our WSRT continuum observations at 1.4...
Revealing Hanny's Voorwerp: radio observations of IC 2497 (2009)
Jozsa, Gyula I. G., Garrett, M. A., Oosterloo, Tom, Rampadarath, H., Paragi, Zsolt, Van Arkel, H., ...
We present multi-wavelength radio observations in the direction of the spiral galaxy IC 2497 and the neighbouring emission nebula known as "Hanny's Voorwerp". Our WSRT continuum observations at 1.4...
Galaxy Zoo: disentangling the environmental dependence of morphology and colour (2009)
Skibba, Ramin A., Bamford, Steven P., Nichol, Robert C., Lintott, Chris J., Andreescu, Dan, Edmondson, Edward M., ...
We analyse the environmental dependence of galaxy morphology and colour with two-point clustering statistics, using data from the Galaxy Zoo, the largest sample of visually classified morphologies...
Galaxy Zoo: Disentangling the Environmental Dependence of Morphology and Colour (2008)
Skibba, Ramin A., Bamford, Steven P., Nichol, Robert C., Lintott, Chris J., Andreescu, Dan, Edmondson, Edward M., ...
We analyze the environmental dependence of galaxy morphology and colour with two-point clustering statistics, using data from the Galaxy Zoo, the largest sample of visually classified morphologies...
Schawinski, Kevin, Lintott, Chris J., Thomas, Daniel, Kaviraj, Sugata, Viti, Serena, Silk, Joseph, ...
Residual star formation at late times in early-type galaxies and their progenitors must be suppressed in order to explain the population of red, passively evolving systems we see today. Likewise,...
Galaxy Zoo: Chiral correlation function of galaxy spins (2008)
Slosar, Anze, Land, Kate, Bamford, Steven, Lintott, Chris, Andreescu, Dan, Murray, Phil, ...
Galaxy Zoo is the first study of nearby galaxies that contains reliable information about the spiral sense of rotation of galaxy arms for a sizeable number of galaxies. We measure the correlation...
Galaxy Zoo: the dependence of morphology and colour on environment (2008)
Bamford, Steven P., Nichol, Robert C., Baldry, Ivan K., Land, Kate, Lintott, Chris J., Schawinski, Kevin, ...
We analyse the relationships between galaxy morphology, colour, environment and stellar mass using data for over 100,000 objects from Galaxy Zoo, the largest sample of visually classified...
Lintott, Chris J., Schawinski, Kevin, Slosar, Anze, Land, Kate, Bamford, Steven, Thomas, Daniel, ...
In order to understand the formation and subsequent evolution of galaxies one must first distinguish between the two main morphological classes of massive systems: spirals and early-type systems....
Forster, Francisco, Schawinski, Kevin
We study the radial distribution of supernova Ia (SNe Ia) in morphologically selected early-type host galaxies from the Sloan Digital Sky Survey (SDSS) and discuss its implications for the progenitor...
Supernova Shock Breakout from a Red Supergiant (2008)
Schawinski, Kevin, Justham, Stephen, Wolf, Christian, Podsiadlowski, Philipp, Sullivan, Mark, Steenbrugge, Katrien C., ...
Massive stars undergo a violent death when the supply of nuclear fuel in their cores is exhausted, resulting in a catastrophic "core-collapse" supernova. Such events are usually only detected at...
Land, Kate, Slosar, Anze, Lintott, Chris, Andreescu, Dan, Bamford, Steven, Murray, Phil, ...
We re-examine the evidence for a violation of large-scale statistical isotropy in the distribution of projected spin vectors of spiral galaxies. We have a sample of $\sim 37,000$ spiral galaxies from...
Supernova shock breakout from a red supergiant (2008)
Schawinski, Kevin, Justham, Stephen, Wolf, Christian, Podsiadlowski, Philipp, Sullivan, Mark, Steenbrugge, Katrien C., ...
Massive stars undergo a violent death when the supply of nuclear fuel in their cores is exhausted, resulting in a catastrophic ``core-collapse'' supernova. Such events are usually only detected at...
A Spectro-photometric Search for Galaxy Clusters in SDSS (2007)
Yoon, Joo H., Schawinski, Kevin, Sheen, Yun-Kyeong, Ree, Chang H., Yi, Sukyoung K.
Recent large-scale galaxy spectroscopic surveys, such as the Sloan Digital Sky Survey (SDSS), enable us to execute a systematic, relatively-unbiased search for galaxy clusters. Such surveys make it...
Ree, Chang H., Lee, Young-Wook, Yi, Sukyoung K., Yoon, Suk-Jin, Rich, R. Michael, Deharveng, Jean-Michel, ...
We present the GALEX UV photometry of the elliptical galaxies in Abell clusters at moderate redshifts (z < 0.2) for the study of the look-back time evolution of the UV upturn phenomenon. The...
Ly Alpha-Emitting Galaxies at z=3.1: L* Progenitors Experiencing Rapid Star Formation (2007)
Gawiser, Eric, Francke, Harold, Lai, Kamson, Schawinski, Kevin, Gronwall, Caryl, Ciardullo, Robin, ...
We studied the clustering properties and multiwavelength spectral energy distributions of a complete sample of 162 Ly Alpha-Emitting (LAE) galaxies at z=3.1 discovered in deep narrow-band MUSYC...
Observational evidence for AGN feedback in early-type galaxies (2007)
Schawinski, Kevin, Thomas, Daniel, Sarzi, Marc, Maraston, Claudia, Kaviraj, Sugata, Joo, Seok-Joo, ...
A major amendment in recent models of hierarchical galaxy formation is the inclusion of so-called AGN feedback. The energy input from an active central massive black hole is invoked to suppress star...
Ree, Chang H., Lee, Young-Wook, Yi, Sukyoung K., Yoon, Suk-Jin, Rich, R. Michael, Deharveng, Jean-Michel, ...
We present the GALEX UV photometry of the elliptical galaxies in Abell clusters at moderate redshifts (z < 0.2) for the study of the look-back time evolution of the UV upturn phenomenon. The...
Schawinski, Kevin, Khochfar, Sadegh, Kaviraj, Sugata, Yi, Sukyoung K., Boselli, Alessandro, Barlow, Tom, ...
Detailed high-resolution observations of the innermost regions of nearby galaxies have revealed the presence of supermassive black holes1. These black holes may interact with their host galaxies by...
The Star Formation History of Early-type Galaxies (2007)
Kevin Schawinski, Sugata Kaviraj, Sukyoung K. Yi
La luz ultravioleta (UV) es un trazador efectivo para las estrellas jóvenes. Utilizando datos UV recientes de GALEX asociados a galaxias cercanas brillantes de tipo temprano encontramos que el 30%...
Uniformity Despite Diversity: PN Expansion Velocities in the Local Group (2007)
J. A. López, M. G. Richer, M. G. Lee, N. Hwang, A. Bressan, J. R. Valdés, ...
Schawinski, Kevin, Khochfar, Sadegh, Kaviraj, Sugata, Yi, Sukyoung K., Boselli, Alessandro, Barlow, Tom, ...
Detailed high-resolution observations of the innermost regions of nearby galaxies have revealed the presence of supermassive black holes1. These black holes may interact with their host galaxies by...
The physical nature of Ly alpha-emitting galaxies at z=3.1 (2006)
Gawiser, Eric, Dokkum, Pieter G. Van, Gronwall, Caryl, Ciardullo, Robin, Blanc, Guillermo A., Castander, Francisco J., ...
We selected 40 candidate Ly alpha-emitting galaxies ( LAEs) at z similar or equal to 3.1 with observed-frame equivalent widths greater than 150 and inferred emission-line fluxes above 2.5 x 10(-17)...
The Physical Nature of Lyman Alpha Emitting Galaxies at z=3.1 (2006)
Gawiser, Eric, Van Dokkum, Pieter G., Gronwall, Caryl, Ciardullo, Robin, Blanc, Guillermo A., Castander, Francisco J., ...
We selected 40 candidate Lyman Alpha Emitting galaxies (LAEs) at z ~=3.1 with observed frame equivalent widths >150A and inferred emission line fluxes >2.5x10^-17 ergs/cm^2/s from deep narrow-band...