Search Results - "Aganze, Christian"

Prospects for Detecting Gaps in Globular Cluster Stellar Streams in External Galaxies with the Nancy Grace Roman Space Telescope by Aganze, Christian, Pearson, Sarah, Starkenburg, Tjitske, Contardo, Gabriella, Johnston, Kathryn V., Tavangar, Kiyan, Price-Whelan, Adrian M., Burgasser, Adam J.

“…Abstract Stellar streams form through the tidal disruption of satellite galaxies or globular clusters orbiting a host galaxy. Globular cluster streams are…”
Get full text

The Brown Dwarf Kinematics Project (BDKP). VI. Ultracool Dwarf Radial and Rotational Velocities from SDSS/APOGEE High-resolution Spectroscopy by Hsu, Chih-Chun, Burgasser, Adam J., Theissen, Christopher A., Birky, Jessica L., Aganze, Christian, Gerasimov, Roman, Schmidt, Sarah J., Blake, Cullen H., Covey, Kevin R., Moreno-Hilario, Elizabeth, Gelino, Christopher R., Serna, Javier, Brownstein, Joel R., Cunha, Katia

“…Abstract We present precise measurements of radial (RV) and projected rotational ( v sin i ) velocities of a sample of 258 M6 to L2 dwarfs with multiepoch,…”
Get full text

Thirteen New M Dwarf + T Dwarf Pairs Identified with WISE/NEOWISE by Marocco, Federico, Kirkpatrick, J. Davy, Schneider, Adam C., Meisner, Aaron M., Popinchalk, Mark, Gelino, Christopher R., Faherty, Jacqueline K., Burgasser, Adam J., Caselden, Dan, Gagné, Jonathan, Aganze, Christian, Bardalez Gagliuffi, Daniella C., Casewell, Sarah L., Hsu, Chih-Chun, Kiman, Rocio, Eisenhardt, Peter R. M., Kuchner, Marc J., Stern, Daniel, Gramaize, Léopold, Sainio, Arttu, Bickle, Thomas P., Rothermich, Austin, Pendrill, William, Thévenot, Melina, Kabatnik, Martin, Colombo, Giovanni, Higashimura, Hiro, Kiwy, Frank, Marchese, Elijah J., Stevnbak Andersen, Nikolaj, Tanner, Christopher, Walla, Jim, Wędracki, Zbigniew

“…Abstract We present the discovery of 13 new widely separated T dwarf companions to M dwarf primaries, identified using Wide-field Infrared Survey…”
Get full text

Redder than Red: Discovery of an Exceptionally Red L/T Transition Dwarf by Schneider, Adam C., Burgasser, Adam J., Bruursema, Justice, Munn, Jeffrey A., Vrba, Frederick J., Caselden, Dan, Kabatnik, Martin, Rothermich, Austin, Sainio, Arttu, Bickle, Thomas P., Dahm, Scott E., Meisner, Aaron M., Kirkpatrick, J. Davy, Suárez, Genaro, Gagné, Jonathan, Faherty, Jacqueline K., Vos, Johanna M., Kuchner, Marc J., Williams, Stephen J., Gagliuffi, Daniella Bardalez, Aganze, Christian, Hsu, Chih-Chun, Theissen, Christopher, Cushing, Michael C., Marocco, Federico, Casewell, Sarah

“…Abstract We present the discovery of CWISE J050626.96+073842.4 (CWISE J0506+0738), an L/T transition dwarf with extremely red near-infrared colors discovered…”
Get full text

JWST/NIRCam Discovery of the First Y+Y Brown Dwarf Binary: WISE J033605.05–014350.4 by Calissendorff, Per, De Furio, Matthew, Meyer, Michael, Albert, Loïc, Aganze, Christian, Ali-Dib, Mohamad, Bardalez Gagliuffi, Daniella C., Baron, Frederique, Beichman, Charles A., Burgasser, Adam J., Cushing, Michael C., Faherty, Jacqueline Kelly, Fontanive, Clémence, Gelino, Christopher R., Gizis, John E., Greenbaum, Alexandra Z., Kirkpatrick, J. Davy, Leggett, Sandy K., Martinache, Frantz, Mary, David, N’Diaye, Mamadou, Pope, Benjamin J. S., Roellig, Thomas, Sahlmann, Johannes, Sivaramakrishnan, Anand, Thorngren, Daniel Peter, Ygouf, Marie, Vandal, Thomas

“…Abstract We report the discovery of the first brown dwarf binary system with a Y dwarf primary, WISE J033605.05−014350.4, observed with NIRCam on JWST with the…”
Get full text

Galactic Archeology with Ultracool Dwarfs and Stellar Streams by Aganze, Christian

“…Galactic Archeologists reconstruct the formation and evolution of the Milky Way by studying its stars. Enabled by large-scale surveys over the past 5 decades…”
Get full text

An Early-time Optical and Ultraviolet Excess in the Type-Ic SN 2020oi by Gagliano, Alexander, Izzo, Luca, Kilpatrick, Charles D., Mockler, Brenna, Jacobson-Galán, Wynn Vicente, Terreran, Giacomo, Dimitriadis, Georgios, Zenati, Yossef, Auchettl, Katie, Drout, Maria R., Narayan, Gautham, Foley, Ryan J., Margutti, R., Rest, Armin, Jones, D. O., Aganze, Christian, Aleo, Patrick D., Burgasser, Adam J., Coulter, D. A., Gerasimov, Roman, Gall, Christa, Hjorth, Jens, Hsu, Chih-Chun, Magnier, Eugene A., Mandel, Kaisey S., Piro, Anthony L., Rojas-Bravo, César, Siebert, Matthew R., Stacey, Holland, Stroh, Michael Cullen, Swift, Jonathan J., Taggart, Kirsty, Tinyanont, Samaporn

“…Abstract We present photometric and spectroscopic observations of Supernova 2020oi (SN 2020oi), a nearby (∼17 Mpc) type-Ic supernova (SN Ic) within the…”
Get full text

Beyond the Local Volume. I. Surface Densities of Ultracool Dwarfs in Deep HST/WFC3 Parallel Fields by Aganze, Christian, Burgasser, Adam J., Malkan, Mathew, Theissen, Christopher A., Tejada Arevalo, Roberto A., Hsu, Chih-Chun, Bardalez Gagliuffi, Daniella C., Ryan, Russell E., Holwerda, Benne

“…Abstract Ultracool dwarf stars and brown dwarfs provide a unique probe of large-scale Galactic structure and evolution; however, until recently spectroscopic…”
Get full text

Spitzer Follow-up of Extremely Cold Brown Dwarfs Discovered by the Backyard Worlds: Planet 9 Citizen Science Project by Meisner, Aaron M., Faherty, Jacqueline K., Kirkpatrick, J. Davy, Schneider, Adam C., Caselden, Dan, Gagné, Jonathan, Kuchner, Marc J., Burgasser, Adam J., Casewell, Sarah L., Debes, John H., Artigau, Étienne, Bardalez Gagliuffi, Daniella C., Logsdon, Sarah E., Kiman, Rocio, Allers, Katelyn, Hsu, Chih-chun, Wisniewski, John P., Allen, Michaela B., Beaulieu, Paul, Colin, Guillaume, Durantini Luca, Hugo A., Goodman, Sam, Gramaize, Léopold, Hamlet, Leslie K., Hinckley, Ken, Kiwy, Frank, Martin, David W., Pendrill, William, Rothermich, Austin, Sainio, Arttu, Schümann, Jörg, Andersen, Nikolaj Stevnbak, Tanner, Christopher, Thakur, Vinod, Thévenot, Melina, Walla, Jim, W dracki, Zbigniew, Aganze, Christian, Gerasimov, Roman, Theissen, Christopher

“…We present Spitzer follow-up imaging of 95 candidate extremely cold brown dwarfs discovered by the Backyard Worlds: Planet 9 citizen science project, which…”
Get full text

Discovery of 34 Low-mass Comoving Systems Using NOIRLab Source Catalog DR2 by Kiwy, Frank, Faherty, Jacqueline K., Meisner, Aaron, Schneider, Adam C., Kirkpatrick, J. Davy, Kuchner, Marc J., Burgasser, Adam J., Casewell, Sarah, Kiman, Rocio, Calamari, Emily, Aganze, Christian, Hsu, Chih-Chun, Sainio, Arttu, Thakur, Vinod

“…Abstract We present the discovery of 34 comoving systems containing an ultracool dwarf found by means of the NOIRLab Source Catalog (NSC) DR2. NSC’s angular…”
Get full text

A 1.55 R⊕ habitable-zone planet hosted by TOI-715, an M4 star near the ecliptic South Pole by Dransfield, Georgina, Timmermans, Mathilde, Triaud, Amaury H M J, Dévora-Pajares, Martín, Aganze, Christian, Barkaoui, Khalid, Burgasser, Adam J, Collins, Karen A, Cointepas, Marion, Ducrot, Elsa, Günther, Maximilian N, Howell, Steve B, Murray, Catriona A, Niraula, Prajwal, Rackham, Benjamin V, Sebastian, Daniel, Stassun, Keivan G, Zúñiga-Fernández, Sebastián, Almenara, José Manuel, Bonfils, Xavier, Bouchy, François, Burke, Christopher J, Charbonneau, David, Christiansen, Jessie L, Delrez, Laetitia, Gan, Tianjun, García, Lionel J, Gillon, Michaël, Gómez Maqueo Chew, Yilen, Hesse, Katharine M, Hooton, Matthew J, Isopi, Giovanni, Jehin, Emmanuël, Jenkins, Jon M, Latham, David W, Mallia, Franco, Murgas, Felipe, Pedersen, Peter P, Pozuelos, Francisco J, Queloz, Didier, Rodriguez, David R, Schanche, Nicole, Seager, Sara, Srdoc, Gregor, Stockdale, Chris, Twicken, Joseph D, Vanderspek, Roland, Wells, Robert, Winn, Joshua N, de Wit, Julien, Zapparata, Aldo

“…ABSTRACT A new generation of observatories is enabling detailed study of exoplanetary atmospheres and the diversity of alien climates, allowing us to seek…”
Get full text

Beyond the Local Volume. II. Population Scaleheights and Ages of Ultracool Dwarfs in Deep HST/WFC3 Parallel Fields by Aganze, Christian, Burgasser, Adam J., Malkan, Mathew, Theissen, Christopher A., Tejada Arevalo, Roberto A., Hsu, Chih-Chun, Bardalez Gagliuffi, Daniella C., Ryan, Russell E., Holwerda, Benne

“…Abstract Ultracool dwarfs (UCDs) represent a significant proportion of stars in the Milky Way, and deep samples of these sources have the potential to…”
Get full text

New Candidate Extreme T Subdwarfs from the Backyard Worlds: Planet 9 Citizen Science Project by Meisner, Aaron M., Schneider, Adam C., Burgasser, Adam J., Marocco, Federico, Line, Michael R., Faherty, Jacqueline K., Kirkpatrick, J. Davy, Caselden, Dan, Kuchner, Marc J., Gelino, Christopher R., Gagné, Jonathan, Theissen, Christopher, Gerasimov, Roman, Aganze, Christian, Hsu, Chih-chun, Wisniewski, John P., Casewell, Sarah L., Bardalez Gagliuffi, Daniella C., Logsdon, Sarah E., Eisenhardt, Peter R. M., Allers, Katelyn, Debes, John H., Allen, Michaela B., Stevnbak Andersen, Nikolaj, Goodman, Sam, Gramaize, Léopold, Martin, David W., Sainio, Arttu, Cushing, Michael C.

“…Schneider et al. presented the discovery of WISEA J041451.67−585456.7 and WISEA J181006.18−101000.5, which appear to be the first examples of extreme T-type…”
Get full text

Cosmic evolution early release science survey (CEERS): multiclassing galactic dwarf stars in the deep JWST/NIRCam by Holwerda, B W, Hsu, Chih-Chun, Hathi, Nimish, Bisigello, Laura, de la Vega, Alexander, Haro, Pablo Arrabal, Bagley, Micaela, Dickinson, Mark, Finkelstein, Steven L, Kartaltepe, Jeyhan S, Koekemoer, Anton M, Papovich, Casey, Pirzkal, Nor, Cook, Kyle, Robertson, Clayton, Casey, Caitlin M, Aganze, Christian, Pérez-González, Pablo G, Lucas, Ray A, Jogee, Shardha, Wilkins, Stephen, Burgarella, Denis, Kirkpatrick, Allison

“…ABSTRACT Low-mass (sub)stellar objects represent the low end of the initial mass function, the transition to free-floating planets and a prominent interloper…”
Get full text

A Wide Planetary Mass Companion Discovered through the Citizen Science Project Backyard Worlds: Planet 9 by Faherty, Jacqueline K., Gagné, Jonathan, Popinchalk, Mark, Vos, Johanna M., Burgasser, Adam J., Schümann, Jörg, Schneider, Adam C., Kirkpatrick, J. Davy, Meisner, Aaron M., Kuchner, Marc J., Bardalez Gagliuffi, Daniella C., Marocco, Federico, Caselden, Dan, Gonzales, Eileen C., Rothermich, Austin, Casewell, Sarah L., Debes, John H., Aganze, Christian, Ayala, Andrew, Hsu, Chih-Chun, Cooper, William J., Smart, R. L., Gerasimov, Roman, Theissen, Christopher A.

“…Abstract Through the Backyard Worlds: Planet 9 citizen science project we discovered a late-type L dwarf co-moving with the young K0 star BD+60 1417 at a…”
Get full text

Ross 19B: An Extremely Cold Companion Discovered via the Backyard Worlds: Planet 9 Citizen Science Project by Schneider, Adam C., Meisner, Aaron M., Gagné, Jonathan, Faherty, Jacqueline K., Marocco, Federico, Burgasser, Adam J., Kirkpatrick, J. Davy, Kuchner, Marc J., Gramaize, Léopold, Rothermich, Austin, Brooks, Hunter, Vrba, Frederick J., Bardalez Gagliuffi, Daniella, Caselden, Dan, Cushing, Michael C., Gelino, Christopher R., Line, Michael R., Casewell, Sarah L., Debes, John H., Aganze, Christian, Ayala, Andrew, Gerasimov, Roman, Gonzales, Eileen C., Hsu, Chih-Chun, Kiman, Rocio, Popinchalk, Mark, Theissen, Christopher

“…Through the Backyard Worlds: Planet 9 citizen science project, we have identified a wide-separation (∼10', ∼9900 au projected) substellar companion to the…”
Get full text

THE FIRST BROWN DWARF/PLANETARY-MASS OBJECT IN THE 32 ORIONIS GROUP by Burgasser, Adam J, Lopez, Mike A, Mamajek, Eric E, Gagne, Jonathan, Faherty, Jacqueline K, Tallis, Melisa, Choban, Caleb, Tamiya, Tomoki, Escala, Ivanna, Aganze, Christian

“…ABSTRACT The 32 Orionis group is a co-moving group of roughly 20 young (24 Myr) M3-B5 stars 100 pc from the Sun. Here we report the discovery of its first…”
Get full text

CWISE J014611.20–050850.0AB: The Widest Known Brown Dwarf Binary in the Field by Softich, Emma, Schneider, Adam C., Patience, Jennifer, Burgasser, Adam J., Shkolnik, Evgenya, Faherty, Jacqueline K., Caselden, Dan, Meisner, Aaron M., Kirkpatrick, J. Davy, Kuchner, Marc J., Gagné, Jonathan, Gagliuffi, Daniella Bardalez, Cushing, Michael C., Casewell, Sarah L., Aganze, Christian, Hsu, Chih-Chun, Andersen, Nikolaj Stevnbak, Kiwy, Frank, Thévenot, Melina

“…Abstract While stars are often found in binary systems, brown dwarf binaries are much rarer. Brown dwarf–brown dwarf pairs are typically difficult to resolve…”
Get full text

THE FIRST BROWN DWARF/PLANETARY-MASS OBJECT IN THE 32 ORIONIS GROUP This paper includes data gathered with the 6.5 m Magellan Telescopes located at Las Campanas Observatory, Chile by Burgasser, Adam J., Lopez, Mike A., Mamajek, Eric E., Gagné, Jonathan, Faherty, Jacqueline K., Tallis, Melisa, Choban, Caleb, Tamiya, Tomoki, Escala, Ivanna, Aganze, Christian

“…ABSTRACT The 32 Orionis group is a co-moving group of roughly 20 young (24 Myr) M3-B5 stars 100 pc from the Sun. Here we report the discovery of its first…”
Get full text

Prospects for Detecting Gaps in Globular Cluster Stellar Streams in External Galaxies with the Nancy Grace Roman Space Telescope by Aganze, Christian, Pearson, Sarah, Starkenburg, Tjitske, Contardo, Gabriella, Johnston, Kathryn V, Tavangar, Kiyan, Price-Whelan, Adrian M, Burgasser, Adam J

“…Stellar streams form through the tidal disruption of satellite galaxies or globular clusters orbiting a host galaxy. Globular cluster streams are exciting…”
Get full text