Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Ponder, K P"'
Autor:
Aldoroty, L., Wang, L., Hoeflich, P., Yang, J., Suntzeff, N., Aldering, G., Antilogus, P., Aragon, C., Bailey, S., Baltay, C., Bongard, S., Boone, K., Buton, C., Copin, Y., Dixon, S., Fouchez, D., Gangler, E., Gupta, R., Hayden, B., Karmen, Mitchell, Kim, A. G., Kowalski, M., Küsters, D., Léget, P. -F., Mondon, F., Nordin, J., Pain, R., Pecontal, E., Pereira, R., Perlmutter, S., Ponder, K. A., Rabinowitz, D., Rigault, M., Rubin, D., Runge, K., Saunders, C., Smadja, G., Suzuki, N., Tao, C., Thomas, R. C., Vincenzi, M.
Publikováno v:
The Astrophysical Journal, 948:10 (15pp), 2023 May 1
We apply the color-magnitude intercept calibration method (CMAGIC) to the Nearby Supernova Factory SNe Ia spectrophotometric dataset. The currently existing CMAGIC parameters are the slope and intercept of a straight line fit to the first linear regi
Externí odkaz:
http://arxiv.org/abs/2210.06708
Autor:
Stein, George, Seljak, Uros, Bohm, Vanessa, Aldering, G., Antilogus, P., Aragon, C., Bailey, S., Baltay, C., Bongard, S., Boone, K., Buton, C., Copin, Y., Dixon, S., Fouchez, D., Gangler, E., Gupta, R., Hayden, B., Hillebrandt, W., Karmen, M., Kim, A. G., Kowalski, M., Kusters, D., Leget, P. F., Mondon, F., Nordin, J., Pain, R., Pecontal, E., Pereira, R., Perlmutter, S., Ponder, K. A., Rabinowitz, D., Rigault, M., Rubin, D., Runge, K., Saunders, C., Smadja, G., Suzuki, N., Tao, C., Thomas, R. C., Vincenzi, M.
We construct a physically-parameterized probabilistic autoencoder (PAE) to learn the intrinsic diversity of type Ia supernovae (SNe Ia) from a sparse set of spectral time series. The PAE is a two-stage generative model, composed of an Auto-Encoder (A
Externí odkaz:
http://arxiv.org/abs/2207.07645
Autor:
Rubin, David, Aldering, G., Antilogus, P., Aragon, C., Bailey, S., Baltay, C., Bongard, S., Boone, K., Buton, C., Copin, Y., Dixon, S., Fouchez, D., Gangler, E., Gupta, R., Hayden, B., Hillebrandt, W., Kim, A. G., Kowalski, M., Kuesters, D., Leget, P. -F., Mondon, F., Nordin, J., Pain, R., Pecontal, E., Pereira, R., Perlmutter, S., Ponder, K. A., Rabinowitz, D., Rigault, M., Runge, K., Saunders, C., Smadja, G., Suzuki, N., Tao, C., Taubenberger, S., Thomas, R. C., Vincenzi, M., Factory, The Nearby Supernova
We calibrate spectrophotometric optical spectra of 32 stars commonly used as standard stars, referenced to 14 stars already on the HST-based CALSPEC flux system. Observations of CALSPEC and non-CALSPEC stars were obtained with the SuperNova Integral
Externí odkaz:
http://arxiv.org/abs/2205.01116
Autor:
Boone, K., Aldering, G., Antilogus, P., Aragon, C., Bailey, S., Baltay, C., Bongard, S., Buton, C., Copin, Y., Dixon, S., Fouchez, D., Gangler, E., Gupta, R., Hayden, B., Hillebrandt, W., Kim, A. G., Kowalski, M., Küsters, D., Léget, P. -F., Mondon, F., Nordin, J., Pain, R., Pecontal, E., Pereira, R., Perlmutter, S., Ponder, K. A., Rabinowitz, D., Rigault, M., Rubin, D., Runge, K., Saunders, C., Smadja, G., Suzuki, N., Tao, C., Taubenberger, S., Thomas, R. C., Vincenzi, M.
We study the spectral diversity of Type Ia supernovae (SNe Ia) at maximum light using high signal-to-noise spectrophotometry of 173 SNe Ia from the Nearby Supernova Factory. We decompose the diversity of these spectra into different extrinsic and int
Externí odkaz:
http://arxiv.org/abs/2105.02676
Autor:
Boone, K., Aldering, G., Antilogus, P., Aragon, C., Bailey, S., Baltay, C., Bongard, S., Buton, C., Copin, Y., Dixon, S., Fouchez, D., Gangler, E., Gupta, R., Hayden, B., Hillebrandt, W., Kim, A. G., Kowalski, M., Küsters, D., Léget, P. -F., Mondon, F., Nordin, J., Pain, R., Pecontal, E., Pereira, R., Perlmutter, S., Ponder, K. A., Rabinowitz, D., Rigault, M., Rubin, D., Runge, K., Saunders, C., Smadja, G., Suzuki, N., Tao, C., Taubenberger, S., Thomas, R. C., Vincenzi, M.
We show how spectra of Type Ia supernovae (SNe Ia) at maximum light can be used to improve cosmological distance estimates. In a companion article, we used manifold learning to build a three-dimensional parameterization of the intrinsic diversity of
Externí odkaz:
http://arxiv.org/abs/2105.02204
Autor:
Hložek, R., Ponder, K. A., Malz, A. I., Dai, M., Narayan, G., Ishida, E. E. O., Allam Jr, T., Bahmanyar, A., Biswas, R., Galbany, L., Jha, S. W., Jones, D. O., Kessler, R., Lochner, M., Mahabal, A. A., Mandel, K. S., Martínez-Galarza, J. R., McEwen, J. D., Muthukrishna, D., Peiris, H. V., Peters, C. M., Setzer, C. N.
Next-generation surveys like the Legacy Survey of Space and Time (LSST) on the Vera C. Rubin Observatory will generate orders of magnitude more discoveries of transients and variable stars than previous surveys. To prepare for this data deluge, we de
Externí odkaz:
http://arxiv.org/abs/2012.12392
Autor:
Aldering, G., Antilogus, P., Aragon, C., Bailey, S., Baltay, C., Bongard, S., Boone, K., Buton, C., Chotard, N., Copin, Y., Dixon, S., Fakhouri, H. K., Feindt, U., Fouchez, D., Gangler, E., Hayden, B., Hillebrandt, W., Kim, A. G., Kowalski, M., Kusters, D., Leget, P. -F., Lin, Q., Lombardo, S., Mondon, F., Nordin, J., Pain, R., Pecontal, E., Pereira, R., Perlmutter, S., Ponder, K., Pruzhinskaya, M., Rabinowitz, D., Rigault, M., Rubin, D., Runge, K., Saunders, C., Says, L. -P., Smadja, G., Suzuki, N., Tao, C., Taubenberger, S., Thomas, R. C., Vincenzi, M., Weaver, B.
The Nearby Supernova Factory has made spectrophotometric observations of Type Ia supernovae since $2004$. This work presents an interim version of the data produced, including $210$ supernovae observed between $2004$ and $2013$.
Comment: 5 pages
Comment: 5 pages
Externí odkaz:
http://arxiv.org/abs/2005.03462
Autor:
Taubenberger, S., Floers, A., Vogl, C., Kromer, M., Spyromilio, J., Aldering, G., Antilogus, P., Bailey, S., Baltay, C., Bongard, S., Boone, K., Buton, C., Chotard, N., Copin, Y., Dixon, S., Fouchez, D., Fransson, C., Gangler, E., Gupta, R. R., Hachinger, S., Hayden, B., Hillebrandt, W., Kim, A. G., Kowalski, M., Leget, P. -F., Leibundgut, B., Mazzali, P. A., Noebauer, U. M., Nordin, J., Pain, R., Pakmor, R., Pecontal, E., Pereira, R., Perlmutter, S., Ponder, K. A., Rabinowitz, D., Rigault, M., Rubin, D., Runge, K., Saunders, C., Smadja, G., Tao, C., Thomas, R. C.
As a candidate 'super-Chandrasekhar' or 09dc-like Type Ia supernova (SN Ia), SN 2012dn shares many characteristics with other members of this remarkable class of objects but lacks their extraordinary luminosity. Here, we present and discuss the most
Externí odkaz:
http://arxiv.org/abs/1907.06753
Autor:
Kessler, R., Narayan, G., Avelino, A., Bachelet, E., Biswas, R., Brown, P. J., Chernoff, D. F., Connolly, A. J., Dai, M., Daniel, S., Di Stefano, R., Drout, M. R., Galbany, L., González-Gaitán, S., Graham, M. L., Hložek, R., Ishida, E. E. O., Guillochon, J., Jha, S. W., Jones, D. O., Mandel, K. S., Muthukrishna, D., O'Grady, A., Peters, C. M., Pierel, J. R., Ponder, K. A., Prša, A., Rodney, S., Villar, V. A.
We describe the simulated data sample for the "Photometric LSST Astronomical Time Series Classification Challenge" (PLAsTiCC), a publicly available challenge to classify transient and variable events that will be observed by the Large Synoptic Survey
Externí odkaz:
http://arxiv.org/abs/1903.11756
Autor:
Malz, A. I., Hložek, R., Allam Jr, T., Bahmanyar, A., Biswas, R., Dai, M., Galbany, L., Ishida, E. E. O., Jha, S. W., Jones, D. O., Kessler, R., Lochner, M., Mahabal, A. A., Mandel, K. S., Martínez-Galarza, J. R., McEwen, J. D., Muthukrishna, D., Narayan, G., Peiris, H., Peters, C. M., Ponder, K. A., Setzer, C. N., Collaboration, The LSST Dark Energy Science, Transients, The LSST, Collaboration, Variable Stars Science
Publikováno v:
AJ 158 5 171 (2019)
Classification of transient and variable light curves is an essential step in using astronomical observations to develop an understanding of their underlying physical processes. However, upcoming deep photometric surveys, including the Large Synoptic
Externí odkaz:
http://arxiv.org/abs/1809.11145