Results 11 to 20 of about 70,958 (245)

Ultraviolet and X-ray Light-Curves of Novae Observed by the Neil Gehrels Swift Observatory

Universe, 2022
With rapid response capabilities, and a daily planning of its observing schedule, the Neil Gehrels Swift Observatory is ideal for monitoring transient and variable sources.
Kim L. Page, N. Paul M. Kuin, Julian P. Osborne   +2 more
doaj   +1 more source

Light Curves of the Neutron Star Merger GW170817/SSS17a: Implications for R-Process Nucleosynthesis [PDF]

, 2017
On 2017 August 17, gravitational waves were detected from a binary neutron star merger, GW170817, along with a coincident short gamma-ray burst, GRB170817A.
Adams, C., Alatalo, K., Baughman, J., Bañados, E., Beers, T. C., Bernstein, R. A., Bidin, C. Moni, Bitsakis, T., Boutsia, K., Campillay, A., Contreras, C., Coulter, D. A., Di Mille, F., Drout, M. R., Foley, R. J., Hansen, T. T., Higgs, C. R., Holoien, T. W. -S., Ji, A. P., Kasen, D., Kilpatrick, C. D., Kollmeier, J. A., Madore, B. F., Maravelias, G., Marshall, J. L., Monson, A. J., Morrell, N., Murguia-Berthier, A., Pan, Y. -C., Piro, A. L., Prieto, J. L., Prochaska, J. X., Ramirez-Ruiz, E., Rasmussen, K. C., Rest, A., Rojas-Bravo, C., Shappee, B. J., Siebert, M. R., Simon, J. D., Strom, A. L., Ulloa, N., Vargas-González, J., Wan, Z., Whitten, D. D.   +43 more
core   +2 more sources

X-Ray, Near-ultraviolet, and Optical Flares Produced by Colliding Magnetospheres in the Young High-eccentricity Binary DQ Tau

The Astrophysical Journal, 2023
DQ Tau is a unique young high-eccentricity binary system that exhibits regular magnetic reconnection flares and pulsed accretion near periastron. We conducted NuSTAR, Swift, and Chandra observations during the 2022 July 30 periastron to characterize X ...
Konstantin V. Getman, Ágnes Kóspál, Nicole Arulanantham, Dmitry A. Semenov, Grigorii V. Smirnov-Pinchukov, Sierk E. van Terwisga   +5 more
doaj   +1 more source

LEMUR: Large European Module for solar Ultraviolet Research. European contribution to JAXA's Solar-C mission [PDF]

, 2011
Understanding the solar outer atmosphere requires concerted, simultaneous solar observations from the visible to the vacuum ultraviolet (VUV) and soft X-rays, at high spatial resolution (between 0.1" and 0.3"), at high temporal resolution (on the order ...
A Bhattacharjee, AA Ballegooijen van, AH Gabriel, Andrzej Fludra, AS Krieger, B Pontieu De, B Pontieu De, B Pontieu De, Berend Winter, Bernhard Kliem, C Tu, Charles M. Brown, CJ Schrijver, Clarence Korendyke, D Banerjee, Daniele Spadaro, Davina Innes, DE Innes, Eric Buchlin, Frédéric Auchère, G Zanna Del, G Zanna Del, G Zanna Del, GA Doschek, GDR Attrill, George A. Doschek, Gianna Cauzzi, Giulio Del Zanna, Hardi Peter, Harry P. Warren, Hector Socas-Navarro, HP Warren, J. Len Culhane, Javier Trujillo-Bueno, Jean-Claude Vial, JK Edmondson, John T. Mariska, Joseph M. Davila, JT Mariska, JW Cirtain, K Wilhelm, L Teriaca, L Teriaca, LK Harra, LM Green, Louise K. Harra, Luca Poletto, Luca Teriaca, Lucie Green, Martin Siemer, MJ Aschwanden, P Bryans, Peter T. Gallagher, Peter Young, Robert J. Rutten, Robert Walsh, S Tsuneta, Saku Tsuneta, Sami K. Solanki, Santiago Vargas Dominguez, Shinsuke Imada, Silvano Fineschi, Spiros Patsourakos, Susanna Parenti, T Wang, T Wiegelmann, Thomas Wiegelmann, Toshifumi Shimizu, Udo Schühle, Valentin Martínez-Pillet, Vincenzo Andretta, W Manchester IV, Werner Curdt, Y Wang   +73 more
core   +2 more sources

Pan-STARRS1 Discovery of Two Ultra-Luminous Supernovae at z ~ 0.9 [PDF]

, 2011
We present the discovery of two ultra-luminous supernovae (SNe) at z ~ 0.9 with the Pan-STARRS1 Medium-Deep Survey. These SNe, PS1-10ky and PS1-10awh, are amongst the most luminous SNe ever discovered, comparable to the unusual transients SN 2005ap and ...
A. M. Soderberg, A. Rest, A. Riess, Abazajian, Barbary, C. W. Stubbs, Chatzopoulos, Chevalier, Chevalier, Chevalier, Contardo, D. C. Martin, Drout, E. A. Magnier, E. Berger, Faber, Foley, Frail, Frail, G. Narayan, Gaensler, Gezari, Gänsicke, H. Flewelling, Hogg, I. Czekala, Immler, Ivezic, J. D. Neill, J. L. Tonry, J. S. Morgan, Jeffery, K. C. Chambers, K. C. Roth, K. Forster, Kasen, Katz, Kewley, Kocevski, L. Chomiuk, M. E. Huber, MacFadyen, Magnier, Malesani, Miller, Mink, Modjaz, N. E. Sanders, N. Kaiser, Nakar, Neill, Nugis, Ofek, Onaka, P. A. Price, Pastorello, Perley, Quimby, R. A. Chevalier, R. Chornock, R. J. Foley, R. J. Wainscoat, R. P. Kirshner, R.-P. Kudritzki, Rest, S. A. Rodney, S. Gezari, S. J. Smartt, Schlegel, Shklovskii, Smith, Smith, Smith, Stoll, Stubbs, Tonry, Tremonti, van der Horst, W. M. Wood-Vasey, W. S. Burgett, Woosley, York   +81 more
core   +5 more sources

Far-Ultraviolet to Near-Infrared Spectroscopy of A Nearby Hydrogen Poor Superluminous Supernova Gaia16apd [PDF]

, 2017
We report the first maximum-light far-Ultraviolet to near-infrared spectra (1000A - 1.62um, rest) of a H-poor superluminous supernova, Gaia16apd. At z=0.1018, it is one of the closest and the UV brightest such events, with 17.4 (AB) magnitude in Swift UV
Blagorodnova, N., Brown, P., Cenko, S. B., Cooke, J., Gal-Yam, A., Jencson, J., Kasliwal, M., Lunnan, R., Ofek, E. O., Quimby, R., Yan, Lin   +10 more
core   +3 more sources

A Tidal Flare Candidate in Abell 1795 [PDF]

, 2013
As part of our ongoing archival X-ray survey of galaxy clusters for tidal flares, we present evidence of an X-ray transient source within 1 arcmin of the core of Abell 1795. The extreme variability (a factor of nearly 50), luminosity (> 2 x 10^42 erg s^{-
Eracleous, M. C., Guennou, L., Ho, L. C., Maksym, W. P., Ulmer, M. P.   +4 more
core   +3 more sources

Statistical Study of Ejections in Coronal Hole Regions As Possible Sources of Solar Wind Switchbacks and Small-scale Magnetic Flux Ropes

The Astrophysical Journal Letters, 2023
The omnipresence of transient fluctuations in the solar wind, such as switchbacks (SBs) and small-scale magnetic flux ropes (SMFRs), have been well observed by the in situ observation of Parker Solar Probe (PSP), yet their sources are not clear. Possible
Nengyi Huang, Sophia D’Anna, Haimin Wang   +2 more
doaj   +1 more source

The digital data processing concepts of the LOFT mission

, 2014
The Large Observatory for X-ray Timing (LOFT) is one of the five mission candidates that were considered by ESA for an M3 mission (with a launch opportunity in 2022 - 2024).
Argan, A., Cros, A., Favre, Y., Gschwender, M., Jetter, F., Santangelo, A., Schanne, S., Smith, P., Suchy, S., Tenzer, C., Uter, P., Walton, D., Wende, H.   +12 more
core   +1 more source

Temporal characterization of individual harmonics of an attosecond pulse train by THz streaking

, 2015
We report on the global temporal pulse characteristics of individual harmonics in an attosecond pulse train by means of photo-electron streaking in a strong low-frequency transient.
Abela, R., Ardana-Lamas, F., Erny, C., Gorgisyan, I., Hauri, C. P., Juranic, P., Stepanov, A.   +6 more
core   +1 more source