Zobrazeno 1 - 10
of 384
pro vyhledávání: '"Provençal P"'
Autor:
von Hippel, T., Farihi, J., Provencal, J. L., Kleinman, S. J., Pringle, J. E., Swan, A., Fontaine, G., Hermes, J. J., Sargent, J., Savery, Z., Cooper, W., Kim, V., Kozyreva, V., Krugov, M., Kusakin, A., Moss, A., Ogloza, W., Pakstiene, E., Serebryanskiy, A., Sonbas, E., Walter, B., Zejmo, M., Zola, S.
More than 36 years have passed since the discovery of the infrared excess from circumstellar dust orbiting the white dwarf G29-38, which at 17.5 pc it is the nearest and brightest of its class. The precise morphology of the orbiting dust remains only
Externí odkaz:
http://arxiv.org/abs/2401.02558
Autor:
Bhatta, Gopal, Zola, Staszek, Drozdz, M., Reichart, Daniel, Haislip, Joshua, Kouprianov, Vladimir, Matsumoto, Katsura, Sonbas, Eda, Caton, D., Pajdosz-Śmierciak, Urszula, Simon, A., Provencal, J., Góra, Dariusz, Stachowski, Grzegorz
Intense outbursts in blazars are among the most extreme phenomena seen in extragalactic objects. Studying these events can offer important information about the energetic physical processes taking place within the innermost regions of blazars, which
Externí odkaz:
http://arxiv.org/abs/2308.07861
Autor:
Reindl, Nicole, Islami, Ramazan, Werner, Klaus, Kepler, S. O., Pritzkuleit, Max, Dawson, Harry, Dorsch, Matti, Istrate, Alina, Pelisoli, Ingrid, Geier, Stephan, Uzundag, Murat, Provencal, Judith, Justham, Stephen
Publikováno v:
A&A 677, A29 (2023)
We report on the spectroscopic confirmation of 68 new bright ($G=13.5-17.2$ mag) and blue (pre-)white dwarfs (WDs). This finding has allowed us to almost double the number of the hottest ($T_{\mathrm{eff}} \geq 60$kK) known WDs brighter than $G=16$ m
Externí odkaz:
http://arxiv.org/abs/2307.03721
Autor:
Bhatta, Gopal, Zola, Staszek, Drozdz, M., Reichart, Daniel, Haislip, Joshua, Kouprianov, Vladimir, Matsumoto, Katsura, Sonbas, Eda, Caton, D., Pajdosz-Śmierciak, Urszula, Simon, A., Provencal, J., Góra, Dariusz, Stachowski, Grzegorz
Flaring episodes in blazars represent one of the most violent processes observed in extra-galactic objects. Studies of such events shed light on the energetics of the physical processes occurring in the innermost regions of blazars, which cannot othe
Externí odkaz:
http://arxiv.org/abs/2301.09562
Autor:
da Rosa, Gabriela Oliveira, Kepler, S. O., Córsico, Alejandro H., Costa, J. E. S., Hermes, J. J., Kawaler, S. D., Bell, Keaton J., Montgomery, M. H., Provencal, J. L., Winget, D. E., Handler, G., Dunlap, Bart, Clemens, J. C., Uzundag, Murat
PG 1159-035 is the prototype of the DOV hot pre-white dwarf pulsators. It was observed during the Kepler satellite K2 mission for 69 days in 59 s cadence mode and by the TESS satellite for 25 days in 20 s cadence mode. We present a detailed asterosei
Externí odkaz:
http://arxiv.org/abs/2208.04791
Publikováno v:
e-Journal of Nondestructive Testing, Vol 29, Iss 8 (2024)
Traditional Non-Destructive Testing (NDT) methods for heat exchangers inspections struggle with both efficiency and accuracy. These methods are time-consuming, prone to errors in data interpretation, and heavily reliant on skilled technicians, who ar
Externí odkaz:
https://doaj.org/article/0102e8a4d87b4019af8cb7c33c76a673
Autor:
Córsico, Alejandro H., Uzundag, Murat, Kepler, S. O., Silvotti, Roberto, Althaus, Leandro G., Koester, Detlev, Baran, Andrzej S., Bell, Keaton J., Bischoff-Kim, Agnès, Hermes, J. J., Kawaler, Steve D., Provencal, Judith L., Winget, Don E., Montgomery, Michael H., Bradley, Paul A., Kleinman, S. J., Nitta, Atsuko
Publikováno v:
A&A 659, A30 (2022)
The collection of high-quality photometric data by space telescopes is revolutionizing the area of white-dwarf asteroseismology. Among the different kinds of pulsating white dwarfs, there are those that have He-rich atmospheres, and they are called D
Externí odkaz:
http://arxiv.org/abs/2111.15551
Autor:
Mackebrandt, F., Schuh, S., Silvotti, R., Kim, S. -L., Kilkenny, D., Green, E. M., Lutz, R., Nagel, T., Provencal, J. L., Otani, T., Oswalt, T. D., Benatti, S., Lanteri, L., Bonanno, A., Frasca, A., Janulis, R., Paparó, M., Molnár, L., Claudi, R., Østensen, R. H.
Publikováno v:
A&A 638, A108 (2020)
We aim to investigate variations in the arrival time of coherent stellar pulsations due to the light-travel time effect to test for the presence of sub-stellar companions. Those companions are the key to one possible formation scenario of apparently
Externí odkaz:
http://arxiv.org/abs/2004.04764
Publikováno v:
Research and Review Journal of Nondestructive Testing, Vol 1, Iss 1 (2023)
Oil & Gas and petrochemical industries need regular inspection of shell and tube heat exchangers to maintain performance. NDT inspection service providers are required to complete the data collection and analysis in the shortest possible time frame,
Externí odkaz:
https://doaj.org/article/5a18808af06a4f7fb3250bf09ea3d0d9
Autor:
Bischoff-Kim, Agnes, Provencal, J. L., Bradley, P. A., Montgomery, M. H., Shipman, H. L., Harrold, Samuel T., Howard, B., Strickland, W., Chandler, D., Campbell, D., Arredondo, A., Linn, R., Russell, D. P., Doyle, D., Brickhouse, A., Peters, D., Kim, S. -L., Jiang, X. J., Mao, Y-N., Kusakin, A. V., Sergeev, A. V., Andreev, M., Velichko, S., Janulis, R., Pakstiene, E., Alicavus, F., Horoz, N., Zola, S., Ogloza, W., Koziel-Wierzbowska, D., Kundera, T., Jableka, D., Debski, B., Baran, A., Meingast, S., Nagel, T., Loebling, L., Heinitz, C., Hoyer, D., Bognar, Zs., Castanheira, B. G.
We report on the analysis of 34 years of photometric observations of the pulsating helium atmosphere white dwarf GD358. The complete data set includes archival data from 1982-2006, and 1195.2 hours of new observations from 2007- 2016. From this data
Externí odkaz:
http://arxiv.org/abs/1810.11708