Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Speagle, Josh"'
Autor:
Walmsley, Mike, Bowles, Micah, Scaife, Anna M. M., Makechemu, Jason Shingirai, Gordon, Alexander J., Ferguson, Annette M. N., Mann, Robert G., Pearson, James, Popp, Jürgen J., Bovy, Jo, Speagle, Josh, Dickinson, Hugh, Fortson, Lucy, Géron, Tobias, Kruk, Sandor, Lintott, Chris J., Mantha, Kameswara, Mohan, Devina, O'Ryan, David, Slijepevic, Inigo V.
We present the first systematic investigation of supervised scaling laws outside of an ImageNet-like context - on images of galaxies. We use 840k galaxy images and over 100M annotations by Galaxy Zoo volunteers, comparable in scale to Imagenet-1K. We
Externí odkaz:
http://arxiv.org/abs/2404.02973
Autor:
Bonaca, Ana, Naidu, Rohan P., Conroy, Charlie, Caldwell, Nelson, Cargile, Phillip A., Han, Jiwon Jesse, Johnson, Benjamin D., Kruijssen, J. M. Diederik, Myeong, G. C., Speagle, Josh, Ting, Yuan-Sen, Zaritsky, Dennis
The origins of most stellar streams in the Milky Way are unknown. With improved proper motions provided by Gaia EDR3, we show that the orbits of 23 Galactic stellar streams are highly clustered in orbital phase space. Based on their energies and angu
Externí odkaz:
http://arxiv.org/abs/2012.09171
Autor:
Carter, Courtney, Conroy, Charlie, Zaritsky, Dennis, Ting, Yuan-Sen, Bonaca, Ana, Naidu, Rohan, Johnson, Benjamin, Cargile, Phillip, Caldwell, Nelson, Speagle, Josh, Han, Jiwon Jesse
Ancient, very metal-poor stars offer a window into the earliest epochs of galaxy formation and assembly. We combine data from the H3 Spectroscopic Survey and Gaia to measure metallicities, abundances of $\alpha$ elements, stellar ages, and orbital pr
Externí odkaz:
http://arxiv.org/abs/2012.00036
Autor:
Masters, Daniel, Capak, Peter, Stern, Daniel, Ilbert, Olivier, Salvato, Mara, Schmidt, Samuel, Longo, Giuseppe, Rhodes, Jason, Paltani, Stephane, Mobasher, Bahram, Hoekstra, Henk, Hildebrandt, Hendrik, Coupon, Jean, Steinhardt, Charles, Speagle, Josh, Faisst, Andreas, Kalinich, Adam, Brodwin, Mark, Brescia, Massimo, Cavuoti, Stefano
Calibrating the photometric redshifts of >10^9 galaxies for upcoming weak lensing cosmology experiments is a major challenge for the astrophysics community. The path to obtaining the required spectroscopic redshifts for training and calibration is da
Externí odkaz:
http://arxiv.org/abs/1509.03318
The current hierarchical merging paradigm and $\Lambda$CDM predict that the $z \sim 4-8$ universe should be a time in which the most massive galaxies are transitioning from their initial halo assembly to the later baryonic evolution seen in star-form
Externí odkaz:
http://arxiv.org/abs/1506.01377
Recent observations indicate a remarkable similarity in the properties of evolving galaxies at fixed mass and redshift, prompting us to consider the possibility that most galaxies may evolve with a common history encompassing star formation, quasar a
Externí odkaz:
http://arxiv.org/abs/1409.2883
Autor:
Steinhardt, Charles L., Speagle, Josh S., Capak, Peter, Silverman, John D., Carollo, Marcella, Dunlop, James, Hashimoto, Yasuhiro, Hsieh, Bau-Ching, Ilbert, Olivier, Fevre, Olivier Le, Floc'h, Emeric Le, Lee, Nicholas, Lin, Liwhai, Lin, Yen-Ting, Masters, Daniel, McCracken, Henry J., Nagao, Tohru, Petric, Andreea, Salvato, Mara, Sanders, Dave, Scoville, Nick, Sheth, Kartik, Strauss, Michael A., Taniguchi, Yoshiaki
Using the first 50% of data collected for the Spitzer Large Area Survey with Hyper-Suprime-Cam (SPLASH) observations on the 1.8 deg$^2$ Cosmological Evolution Survey (COSMOS) we estimate the masses and star formation rates of 3398 $M_*>10^{10}M_\odot
Externí odkaz:
http://arxiv.org/abs/1407.7030
Akademický článek
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Autor:
Steinhardt, Charles L., Speagle, Josh S., Capak, Peter, Silverman, John D., Carollo, Marcella, Dunlop, James, Hashimoto, Yasuhiro, Hsieh, Bau-Ching, Ilbert, Olivier, Le Fevre, Olivier, Le Floc'H, Emeric, Lee, Nicholas, Lin, Lihwai, Lin, Yen-Ting, Masters, Dan, McCracken, Henry J., Nagao, Tohru, Petric, Andreea, Salvato, Mara, Sanders, Dave, Scoville, Nick, Sheth, Kartik, Strauss, Michael A., Taniguchi, Yoshiaki
Publikováno v:
The Astrophysical journal letters
The Astrophysical journal letters, Bristol : IOP Publishing, 2014, 791 (2), ⟨10.1088/2041-8205/791/2/L25⟩
The Astrophysical journal letters, Bristol : IOP Publishing, 2014, 791 (2), ⟨10.1088/2041-8205/791/2/L25⟩
International audience; Using the first 50% of data collected for the Spitzer Large Area Survey with Hyper-Suprime-Cam observations on the 1.8 deg(2) Cosmological Evolution Survey we estimate the masses and star formation rates of 3398M(*) \textgreat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::43441deaa1ce9bcb23204fd6d48d57e7
https://hal.archives-ouvertes.fr/hal-01441995/file/Steinhardt_2014_ApJL_791_L25.pdf
https://hal.archives-ouvertes.fr/hal-01441995/file/Steinhardt_2014_ApJL_791_L25.pdf
Using a compilation of 20 papers published since 2007, we investigate the evolution of the star-forming galaxy (SFG) Main Sequence (MS) out to z ~ 6 (age ~ 0.9 Gyr). These data encompass star formation rate (SFR) indicators from 1.4 GHz – UV, many
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8905f5798f9053be2d797047877eec4a