Zobrazeno 1 - 10
of 3 492
pro vyhledávání: '"P J, Christopher"'
Autor:
Mihos, J. Christopher, Durrell, Patrick R., Toloba, Elisa, Peng, Eric W., Lim, Sungsoon, Côté, Patrick, Guhathakurta, Puragra, Ferrarese, Laura
We use Hubble Space Telescope imaging to study the globular cluster system of the Virgo Cluster ultradiffuse galaxy (UDG) VCC 615. We select globular cluster candidates through a combination of size and color, while simultaneously rejecting contamina
Externí odkaz:
http://arxiv.org/abs/2412.01730
Autor:
Kaiser, Benjamin C., Clemens, J. Christopher, Blouin, Simon, Dennihy, Erik, Dufour, Patrick, Hegedus, Ryan J., Reding, Joshua S.
The bulk abundances of exoplanetesimals can be measured when they are accreted by white dwarfs. Recently, lithium from the accretion of exoplanetesimals was detected in relatively high levels in multiple white dwarfs. There are presently three propos
Externí odkaz:
http://arxiv.org/abs/2412.01878
We present a global census of metals in the Universe and their evolution with cosmic time, synthesizing robust estimates of metals in stars, hot intra-cluster gas, and gaseous absorbers tracing neutral gas as well as ionized gas in the circumgalactic
Externí odkaz:
http://arxiv.org/abs/2411.19465
Autor:
Lim, Sungsoon, Peng, Eric W., Côté, Patrick, Ferrarese, Laura, Roediger, Joel C., Liu, Chengze, Spengler, Chelsea, Sola, Elisabeth, Duc, Pierre-Alain, Sales, Laura V., Blakeslee, John P., Cuillandre, Jean-Charles, Durrell, Patrick R., Emsellem, Eric, Gwyn, Stephen D. J., Lançon, Ariane, Marleau, Francine R., Mihos, J. Christopher, Müller, Oliver, Puzia, Thomas H., Sánchez-Janssen, Rubén
We present an analysis of the spatial distribution of globular cluster (GC) systems of 118 nearby early-type galaxies in the Next Generation Virgo Cluster Survey (NGVS) and Mass Assembly of early-Type GaLAxies with their fine Structures (MATLAS) surv
Externí odkaz:
http://arxiv.org/abs/2411.17049
Autor:
Galaz, Gaspar, González-López, Jorge, Guzmán, Viviana, Messias, Hugo, Junais, Boissier, Samuel, Epinat, Benoît, Weilbacher, Peter M., Puzia, Thomas, Johnston, Evelyn J., Amram, Philippe, Frayer, David, Blaña, Matías, Howk, J. Christopher, Berg, Michelle, Bustos-Espinoza, Roy, Muñoz-Mateos, Juan Carlos, Cortés, Paulo, García-Appadoo, Diego, Joachimi, Katerine
After over three decades of unsuccessful attempts, we report the first detection of molecular gas emission in Malin 1, the largest spiral galaxy observed to date, and one of the most iconic giant low surface brightness galaxies. Using ALMA, we detect
Externí odkaz:
http://arxiv.org/abs/2410.22230
The quadratic traveling salesperson problem (QTSP) is a generalization of the traveling salesperson problem, in which all triples of consecutive customers in a tour determine the travel cost. We propose compact optimization models for QTSP in mixed-i
Externí odkaz:
http://arxiv.org/abs/2408.16680
Autor:
Khan, Aafaque R., Hamden, Erika, Chung, Haeun, Choi, Heejoo, Kim, Daewook, Melso, Nicole, Hoadley, Keri, Vargas, Carlos J., Truong, Daniel, Garcia, Elijah, Verts, Bill, Coronado, Fernando, Noenickx, Jamison, Corliss, Jason, Tanquary, Hannah, Mcmahon, Tom, Hamara, Dave, Agarwal, Simran, Augustin, Ramona, Behroozi, Peter, Bradley, Harrison, Brendel, Trenton, Burchett, Joe, Castillo, Jasmine Martinez, Chambers, Jacob, Corlies, Lauren, Davis, Greyson, Dettmar, Ralf-Jürgen, Douglas, Ewan, Ghidoli, Giulia, Goodwin, Alfred, Harris, Walter, Hergenrother, Carl, Howk, J. Christopher, Keppler, Miriam, Kerkeser, Nazende Ipek, Kidd Jr., John N., Li, Jessica S., Noriega, Gabe, Park, Sooseong, Pecha, Ryan, Sauve, Cork, Schiminovich, David, Selznick, Sanford, Siegmund, Oswald, Su, Rebecca, Uppnor, Sumedha, Vider, Jacob, Wolcott, Ellie, Yescas, Naomi, Zaritsky, Dennis
Aspera is a NASA Astrophysics Pioneers SmallSat mission designed to study diffuse OVI emission from the warm-hot phase gas in the halos of nearby galaxies. Its payload consists of two identical Rowland Circle-type long-slit spectrographs, sharing a s
Externí odkaz:
http://arxiv.org/abs/2407.15391
Autor:
Lim, Sungsoon, Peng, Eric W., Côté, Patrick, Ferrarese, Laura, Roediger, Joel C., Liu, Chengze, Spengler, Chelsea, Sola, Elisabeth, Duc, Pierre-Alain, Sales, Laura V., Blakeslee, John P., Cuillandre, Jean-Charles, Durrell, Patrick R., Emsellem, Eric, Gwyn, Stephen D. J., Lançon, Ariane, Marleau, Francine R., Mihos, J. Christopher, Müller, Oliver, Puzia, Thomas H., Sánchez-Janssen, Rubén
We study the size and structure of globular clusters (GC) systems of 118 early-type galaxies from the NGVS, MATLAS, and ACSVCS surveys. Fitting S\'ersic profiles, we investigate the relationship between effective radii of GC systems ($R_{e, \rm gc}$)
Externí odkaz:
http://arxiv.org/abs/2403.09926
Autor:
Zhang, Jiachen, Beck, J. Christopher
We propose domain-independent dynamic programming (DIDP) and constraint programming (CP) models to exactly solve type-1 and type-2 assembly line balancing problem with sequence-dependent setup times (SUALBP). The goal is to assign tasks to assembly s
Externí odkaz:
http://arxiv.org/abs/2403.06780
Autor:
Sameer, Lehner, Nicolas, Howk, J. Christopher, Fox, Andrew J., O'Meara, John M., Oppenheimer, Benjamin D.
We analyze the \ovi\ content and kinematics for 126 {\hi}-selected absorbers at $0.14 \lesssim z \lesssim 0.73$ for which the metallicities of their cool photoionized phase have been determined. We separate the absorbers into 100 strong {\lya} forest
Externí odkaz:
http://arxiv.org/abs/2403.02374