Search Results - "Bechtol, K."

Detailed Abundances in the Ultra-faint Magellanic Satellites Carina II and III by Ji, A. P., Li, T. S., Simon, J. D., Marshall, J., Vivas, A. K., Pace, A. B., Bechtol, K., Drlica-Wagner, A., Koposov, S. E., Hansen, T. T., Allam, S., Gruendl, R. A., Johnson, M. D., McNanna, M., Noël, N. E. D., Tucker, D. L., Walker, A. R.

“…We present the first detailed elemental abundances in the ultra-faint Magellanic satellite galaxies Carina II (Car II) and Carina III (Car III). With…”
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EIGHT NEW MILKY WAY COMPANIONS DISCOVERED IN FIRST-YEAR DARK ENERGY SURVEY DATA by Bechtol, K., Drlica-Wagner, A., Balbinot, E., Pieres, A., Simon, J. D., Yanny, B., Santiago, B., Wechsler, R. H., Frieman, J., Walker, A. R., Williams, P., Rozo, E., Rykoff, E. S., Queiroz, A., Luque, E., Benoit-Lévy, A., Tucker, D., Sevilla, I., Gruendl, R. A., Costa, L. N. da, Neto, A. Fausti, Maia, M. A. G., Abbott, T., Allam, S., Armstrong, R., Bauer, A. H., Bernstein, G. M., Bernstein, R. A., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Rosell, A. Carnero, Castander, F. J., Covarrubias, R., D'Andrea, C. B., DePoy, D. L., Desai, S., Diehl, H. T., Eifler, T. F., Estrada, J., Evrard, A. E., Fernandez, E., Finley, D. A., Flaugher, B., Gaztanaga, E., Gerdes, D., Girardi, L., Gladders, M., Gruen, D., Gutierrez, G., Hao, J., Honscheid, K., Jain, B., James, D., Kent, S., Kron, R., Kuehn, K., Kuropatkin, N., Lahav, O., Li, T. S., Lin, H., Makler, M., March, M., Marshall, J., Martini, P., Merritt, K. W., Miller, C., Miquel, R., Mohr, J., Neilsen, E., Nichol, R., Nord, B., Ogando, R., Peoples, J., Petravick, D., Plazas, A. A., Romer, A. K., Roodman, A., Sako, M., Sanchez, E., Scarpine, V., Schubnell, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E. C., Tarle, G., Thaler, J., Thomas, D., Wester, W., Zuntz, J.

“…ABSTRACT We report the discovery of eight new Milky Way companions in of optical imaging data collected during the first year of the Dark Energy Survey (DES)…”
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The Dark Energy Survey Image Processing Pipeline by Morganson, E., Gruendl, R. A., Menanteau, F., Kind, M. Carrasco, Chen, Y.-C., Daues, G., Drlica-Wagner, A., Friedel, D. N., Gower, M., Johnson, M. W. G., Johnson, M. D., Kessler, R., Paz-Chinchón, F., Petravick, D., Pond, C., Yanny, B., Allam, S., Armstrong, R., Barkhouse, W., Bechtol, K., Benoit-Lévy, A., Bernstein, G. M., Bertin, E., Buckley-Geer, E., Covarrubias, R., Desai, S., Diehl, H. T., Goldstein, D. A., Gruen, D., Li, T. S., Lin, H., Marriner, J., Mohr, J. J., Neilsen, E., Ngeow, C.-C., Paech, K., Rykoff, E. S., Sako, M., Sevilla-Noarbe, I., Sheldon, E., Sobreira, F., Tucker, D. L., Wester, W.

“…The Dark Energy Survey (DES) is a five-year optical imaging campaign with the goal of understanding the origin of cosmic acceleration. DES performs a ∼5000…”
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Discovery of two neighbouring satellites in the Carina constellation with MagLiteS by Torrealba, G, Belokurov, V, Koposov, S E, Bechtol, K, Drlica-Wagner, A, Olsen, K A G, Vivas, A K, Yanny, B, Jethwa, P, Walker, A R, Li, T S, Allam, S, Conn, B C, Gallart, C, Gruendl, R A, James, D J, Johnson, M D, Kuehn, K, Kuropatkin, N, Martin, N F, Martinez-Delgado, D, Nidever, D L, Noël, N E D, Simon, J D, Stringfellow, G S, Tucker, D L

“…Abstract We report the discovery of two ultra-faint satellites in the vicinity of the Large Magellanic Cloud (LMC) in data from the Magellanic Satellites…”
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The southern stellar stream spectroscopic survey (S5): Overview, target selection, data reduction, validation, and early science by Li, T S, Koposov, S E, Zucker, D B, Lewis, G F, Kuehn, K, Simpson, J D, Ji, A P, Shipp, N, Mao, Y-Y, Geha, M, Pace, A B, Mackey, A D, Allam, S, Tucker, D L, Da Costa, G S, Erkal, D, Simon, J D, Mould, J R, Martell, S L, Wan, Z, De Silva, G M, Bechtol, K, Balbinot, E, Belokurov, V, Bland-Hawthorn, J, Casey, A R, Cullinane, L, Drlica-Wagner, A, Sharma, S, Vivas, A K, Wechsler, R H, Yanny, B

“…ABSTRACT We introduce the southern stellar stream spectroscopy survey (S5), an on-going program to map the kinematics and chemistry of stellar streams in the…”
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Digging deeper into the Southern skies: a compact Milky Way companion discovered in first-year Dark Energy Survey data by Luque, E., Queiroz, A., Santiago, B., Pieres, A., Balbinot, E., Bechtol,  K., Drlica-Wagner, A., Neto, A. Fausti, da Costa, L. N., Maia, M. A. G., Yanny, B., Abbott, T., Allam, S., Benoit-Lévy, A., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Cunha, C. E., Desai, S., Diehl, H. T., Dietrich, J. P., Eifler, T. F., Finley, D. A., Flaugher, B., Fosalba, P., Frieman, J., Gerdes, D. W., Gruen, D., Gutierrez, G., Honscheid,  K., James, D. J., Kuehn,  K., Kuropatkin, N., Lahav, O., Li, T. S., March, M., Marshall, J. L., Martini, P., Miquel, R., Neilsen, E., Nichol, R. C., Nord, B., Ogando, R., Plazas, A. A., Romer, A. K., Roodman, A., Sanchez, E., Scarpine, V., Schubnell, M., Sevilla-Noarbe, I., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E. C., Tarle, G., Thaler, J., Tucker, D., Walker, A. R., Zhang, Y.

“…We use the first-year Dark Energy Survey (DES) data down to previously unprobed photometric depths to search for stellar systems in the Galactic halo,…”
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An r-process Enhanced Star in the Dwarf Galaxy Tucana III by Hansen, T. T., Simon, J. D., Marshall, J. L., Li, T. S., Carollo, D., DePoy, D. L., Nagasawa, D. Q., Bernstein, R. A., Drlica-Wagner, A., Abdalla, F. B., Allam, S., Annis, J., Bechtol, K., Benoit-Lévy, A., Brooks, D., Buckley-Geer, E., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Cunha, C. E., Costa, L. N. da, Desai, S., Eifler, T. F., Neto, A. Fausti, Flaugher, B., Frieman, J., García-Bellido, J., Gaztanaga, E., Gerdes, D. W., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., James, D. J., Krause, E., Kuehn, K., Kuropatkin, N., Lahav, O., Miquel, R., Plazas, A. A., Romer, A. K., Sanchez, E., Santiago, B., Scarpine, V., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E. C., Tarle, G., Walker, A. R.

“…Abstract Chemically peculiar stars in dwarf galaxies provide a window for exploring the birth environment of stars with varying chemical enrichment. We present…”
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Birds of a Feather? Magellan/IMACS Spectroscopy of the Ultra-faint Satellites Grus II, Tucana IV, and Tucana V by Simon, J. D., Li, T. S., Erkal, D., Pace, A. B., Drlica-Wagner, A., James, D. J., Marshall, J. L., Bechtol, K., Hansen, T., Kuehn, K., Lidman, C., Allam, S., Annis, J., Avila, S., Bertin, E., Brooks, D., Burke, D. L., Rosell, A. Carnero, Carrasco Kind, M., Carretero, J., da Costa, L. N., De Vicente, J., Desai, S., Doel, P., Eifler, T. F., Everett, S., Fosalba, P., Frieman, J., García-Bellido, J., Gaztanaga, E., Gerdes, D. W., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hollowood, D. L., Honscheid, K., Krause, E., Kuropatkin, N., MacCrann, N., Maia, M. A. G., March, M., Miquel, R., Palmese, A., Paz-Chinchón, F., Plazas, A. A., Reil, K., Roodman, A., Sanchez, E., Santiago, B., Scarpine, V., Schubnell, M., Serrano, S., Smith, M., Suchyta, E., Tarle, G., Walker, A. R.

“…Abstract We present Magellan/IMACS spectroscopy of three recently discovered ultra-faint Milky Way satellites, Grus II, Tucana IV, and Tucana V. We measure…”
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SEARCH FOR SPATIALLY EXTENDED FERMI LARGE AREA TELESCOPE SOURCES USING TWO YEARS OF DATA by Lande, J, Ackermann, M, ALLAFORT, A, Ballet, J, Bechtol, K, Burnett, T H, Cohen-Tanugi, J, Drlica-Wagner, A, Funk, S, Giordano, F, Grondin, H, Kerr, M, LEMOINE-GOUMARD, M

“…Spatial extension is an important characteristic for correctly associating [gamma]-ray-emitting sources with their counterparts at other wavelengths and for…”
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Ships Passing in the Night: Spectroscopic Analysis of Two Ultra-faint Satellites in the Constellation Carina by Li, T. S., Simon, J. D., Pace, A. B., Torrealba, G., Kuehn, K., Drlica-Wagner, A., Bechtol, K., Vivas, A. K., Marel, R. P. van der, Wood, M., Yanny, B., Belokurov, V., Jethwa, P., Zucker, D. B., Lewis, G., Kron, R., Nidever, D. L., Sánchez-Conde, M. A., Ji, A. P., Conn, B. C., James, D. J., Martin, N. F., Martinez-Delgado, D., Noël, N. E. D.

“…Abstract We present Magellan/IMACS, Anglo-Australian Telescope/AAOmega+2dF, and Very Large Telescope/GIRAFFE+FLAMES spectroscopy of the Carina II (Car II) and…”
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A Faint Halo Star Cluster Discovered in the Blanco Imaging of the Southern Sky Survey by Mau, S., Drlica-Wagner, A., Bechtol, K., Pace, A. B., Li, T., Soares-Santos, M., Kuropatkin, N., Allam, S., Tucker, D., Santana-Silva, L., Yanny, B., Jethwa, P., Palmese, A., Vivas, K., Burgad, C., Chen, H.-Y.

“…We present the discovery of a faint, resolved stellar system, BLISS J0321+0438 (BLISS 1), found in Dark Energy Camera data from the first observing run of the…”
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Fermi Observations of High-Energy Gamma-Ray Emission from GRB 080916C by Abdo, A A, Ackermann, M, Arimoto, M, Asano, K, Atwood, W B, Axelsson, M, Baldini, L, Ballet, J, Band, D L, Barbiellini, G, Baring, M G, Bastieri, D, Battelino, M, Baughman, B M, Bechtol, K, Bellardi, F, Bellazzini, R, Berenji, B, Bhat, P N, Bissaldi, E, Blandford, R D, Bloom, E D, Bogaert, G, Bogart, J R, Bonamente, E, Bonnell, J, Borgland, A W, Bouvier, A, Bregeon, J, Brez, A, Briggs, M S, Brigida, M, Bruel, P, Burnett, T H, Burrows, D, Busetto, G, Caliandro, G A, Cameron, R A, Caraveo, P A, Casandjian, J M, Ceccanti, M, Cecchi, C, Celotti, A, Charles, E, Chekhtman, A, Cheung, C C, Chiang, J, Ciprini, S, Claus, R, Cohen-Tanugi, J, Cominsky, L R, Connaughton, V, Conrad, J, Costamante, L, Cutini, S, Deklotz, M, Dermer, C D, de Angelis, A, de Palma, F, Digel, S W, Dingus, B L, do Couto E Silva, E, Drell, P S, Dubois, R, Dumora, D, Edmonds, Y, Evans, P A, Fabiani, D, Farnier, C, Favuzzi, C, Finke, J, Fishman, G, Focke, W B, Frailis, M, Fukazawa, Y, Funk, S, Fusco, P, Gargano, F, Gasparrini, D, Gehrels, N, Germani, S, Giebels, B, Giglietto, N, Giommi, P, Giordano, F, Glanzman, T, Godfrey, G, Goldstein, A, Granot, J, Greiner, J, Grenier, I A, Grondin, M-H, Grove, J E, Guillemot, L, Guiriec, S, Haller, G, Hanabata, Y, Harding, A K, Hayashida, M, Hays, E

“…Gamma-ray bursts (GRBs) are highly energetic explosions signaling the death of massive stars in distant galaxies. The Gamma-ray Burst Monitor and Large Area…”
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Two Ultra-faint Milky Way Stellar Systems Discovered in Early Data from the DECam Local Volume Exploration Survey by Mau, S., Cerny, W., Pace, A. B., Choi, Y., Drlica-Wagner, A., Santana-Silva, L., Riley, A. H., Erkal, D., Stringfellow, G. S., Adamów, M., Carlin, J. L., Gruendl, R. A., Hernandez-Lang, D., Kuropatkin, N., Li, T. S., Martínez-Vázquez, C. E., Morganson, E., Mutlu-Pakdil, B., Neilsen, E. H., Nidever, D. L., Olsen, K. A. G., Sand, D. J., Tollerud, E. J., Tucker, D. L., Yanny, B., Zenteno, A., Allam, S., Barkhouse, W. A., Bechtol, K., Bell, E. F., Balaji, P., Crnojevi, D., Esteves, J., Ferguson, P. S., Gallart, C., Hughes, A. K., James, D. J., Jethwa, P., Johnson, L. C., Kuehn, K., Majewski, S., Mao, Y.-Y., Massana, P., McNanna, M., Monachesi, A., Nadler, E. O., Noël, N. E. D., Palmese, A., Paz-Chinchon, F., Pieres, A., Sanchez, J., Shipp, N., Simon, J. D., Soares-Santos, M., Tavangar, K., van der Marel, R. P., Vivas, A. K., Walker, A. R., Wechsler, R. H.

“…We report the discovery of two ultra-faint stellar systems found in early data from the DECam Local Volume Exploration survey (DELVE). The first system,…”
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Brown dwarf census with the Dark Energy Survey year 3 data and the thin disc scale height of early L types by Carnero Rosell, A, Santiago, B, dal Ponte, M, Burningham, B, da Costa, L N, James, D J, Marshall, J L, McMahon, R G, Bechtol, K, De Paris, L, Li, T, Pieres, A, García-Bellido, J, Abbott, T M C, Annis, J, Avila, S, Bernstein, G M, Brooks, D, Burke, D L, Carrasco Kind, M, Carretero, J, De Vicente, J, Drlica-Wagner, A, Fosalba, P, Frieman, J, Gaztanaga, E, Gruendl, R A, Gschwend, J, Gutierrez, G, Hollowood, D L, Maia, M A G, Menanteau, F, Miquel, R, Plazas, A A, Roodman, A, Sanchez, E, Scarpine, V, Schindler, R, Serrano, S, Sevilla-Noarbe, I, Smith, M, Sobreira, F, Soares-Santos, M, Suchyta, E, Swanson, M E C, Tarle, G, Vikram, V, Walker, A R

“…ABSTRACT In this paper we present a catalogue of 11 745 brown dwarfs with spectral types ranging from L0 to T9, photometrically classified using data from the…”
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A Deeper Look at DES Dwarf Galaxy Candidates: Grus i and Indus ii by Cantu, Sarah A., Pace, Andrew B., Marshall, Jennifer, Strigari, Louis E., Crnojevic, Denija, Simon, Joshua D., Drlica-Wagner, A., Bechtol, K., Martínez-Vázquez, Clara E., Santiago, B., Amara, A., Stringer, K. M., Diehl, H. T., Aguena, M., Allam, S., Avila, S., Brooks, D., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Costanzi, M., Da Costa, L. N., De Vicente, J., Desai, S., Doel, P., Eifler, T. F., Everett, S., Frieman, J., García-Bellido, J., Gaztanaga, E., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hinton, S. R., Hollowood, D. L., Honscheid, K., James, D. J., Kuehn, K., Maia, M. A. G., Menanteau, F., Miquel, R., Palmese, A., Paz-Chinchón, F., Plazas, A. A., Sanchez, E., Scarpine, V., Schubnell, M., Serrano, S., Sevilla-Noarbe, I., Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. E. C., Tarle, G., Walker, A. R., Wilkinson, R. D.

“…Abstract We present deep g - and r -band Magellan/Megacam photometry of two dwarf galaxy candidates discovered in the Dark Energy Survey (DES), Grus i and…”
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SPATIALLY RESOLVING A STARBURST GALAXY AT HARD X-RAY ENERGIES: NuSTAR , CHANDRA , AND VLBA OBSERVATIONS OF NGC 253 by Wik, D R, Lehmer, B D, Hornschemeier, A E, Yukita, M, Ptak, A, Zezas, A, Antoniou, V, Argo, M K, Bechtol, K, Boggs, S

“…Prior to the launch of NuSTAR, it was not feasible to spatially resolve the hard (E > 10 keV) emission from galaxies beyond the Local Group. The combined…”
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Expediting DECam Multimessenger Counterpart Searches with Convolutional Neural Networks by Shandonay, A., Morgan, R., Bechtol, K., Bom, C. R., Nord, B., Garcia, A., Henghes, B., Herner, K., Tabbutt, M., Palmese, A., Santana-Silva, L., Soares-Santos, M., Gill, M. S. S., García-Bellido, J.

“…Abstract Searches for counterparts to multimessenger events with optical imagers use difference imaging to detect new transient sources. However, even with…”
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Astrometric Calibration and Performance of the Dark Energy Camera by Bernstein, G. M., Armstrong, R., Plazas, A. A., Walker, A. R., Abbott, T. M. C., Allam, S., Bechtol, K., Benoit-Lévy, A., Brooks, D., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Cunha, C. E., Costa, L. N. da, DePoy, D. L., Desai, S., Diehl, H. T., Eifler, T. F., Fernandez, E., Fosalba, P., Frieman, J., García-Bellido, J., Gerdes, D. W., Gruen, D., Gruendl, R. A., Gschwend, J., Gutierrez, G., Honscheid, K., James, D. J., Kent, S., Krause, E., Kuehn, K., Kuropatkin, N., Li, T. S., Maia, M. A. G., March, M., Marshall, J. L., Menanteau, F., Miquel, R., Ogando, R. L. C., Reil, K., Roodman, A., Rykoff, E. S., Sanchez, E., Scarpine, V., Schindler, R., Schubnell, M., Sevilla-Noarbe, I., Smith, M., Smith, R. C., Soares-Santos, M., Sobreira, F., Suchyta, E., Swanson, M. E. C., Tarle, G.

“…We characterize the ability of the Dark Energy Camera (DECam) to perform relative astrometry across its 500 Mpix, 3-deg2 science field of view and across four…”
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Chemical Abundance Analysis of Tucana III, the Second r-process Enhanced Ultra-faint Dwarf Galaxy by Marshall, J. L., Hansen, T., Simon, J. D., Li, T. S., Bernstein, R. A., Kuehn, K., Pace, A. B., DePoy, D. L., Palmese, A., Pieres, A., Strigari, L., Drlica-Wagner, A., Bechtol, K., Lidman, C., Nagasawa, D. Q., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Rosell, A. Carnero, Kind, M. Carrasco, Carretero, J., Cunha, C. E., D’Andrea, C. B., Costa, L. N. da, Vicente, J. De, Desai, S., Doel, P., Eifler, T. F., Flaugher, B., Fosalba, P., Frieman, J., García-Bellido, J., Gaztanaga, E., Gerdes, D. W., Gruendl, R. A., Gschwend, J., Gutierrez, G., Hartley, W. G., Hollowood, D. L., Honscheid, K., Hoyle, B., James, D. J., Kuropatkin, N., Maia, M. A. G., Menanteau, F., Miller, C. J., Miquel, R., Plazas, A. A., Sanchez, E., Santiago, B., Scarpine, V., Schubnell, M., Serrano, S., Sevilla-Noarbe, I., Smith, M., Soares-Santos, M., Suchyta, E., Swanson, M. E. C., Tarle, G., Wester, W.

“…Abstract We present a chemical abundance analysis of four additional confirmed member stars of Tucana III, a Milky Way satellite galaxy candidate in the…”
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DeepZipper: A Novel Deep-learning Architecture for Lensed Supernovae Identification by Morgan, R., Nord, B., Bechtol, K., González, S. J., Buckley-Geer, E., Möller, A., Park, J. W., Kim, A. G., Birrer, S., Aguena, M., Annis, J., Bocquet, S., Brooks, D., Carnero Rosell, A., Carrasco Kind, M., Carretero, J., Cawthon, R., da Costa, L. N., Davis, T. M., De Vicente, J., Doel, P., Ferrero, I., Friedel, D., Frieman, J., García-Bellido, J., Gatti, M., Gaztanaga, E., Giannini, G., Gruen, D., Gruendl, R. A., Gutierrez, G., Hollowood, D. L., Honscheid, K., James, D. J., Kuehn, K., Kuropatkin, N., Maia, M. A. G., Miquel, R., Palmese, A., Paz-Chinchón, F., Pereira, M. E. S., Pieres, A., Plazas Malagón, A. A., Reil, K., Roodman, A., Sanchez, E., Smith, M., Suchyta, E., Swanson, M. E. C., Tarle, G., To, C.

“…Abstract Large-scale astronomical surveys have the potential to capture data on large numbers of strongly gravitationally lensed supernovae (LSNe). To…”
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