Search Results - "de Ugarte Postigo, A"

Short GRB 160821B: A Reverse Shock, a Refreshed Shock, and a Well-sampled Kilonova by Lamb, G. P., Tanvir, N. R., Levan, A. J., Postigo, A. de Ugarte, Kawaguchi, K., Corsi, A., Evans, P. A., Gompertz, B., Malesani, D. B., Page, K. L., Wiersema, K., Rosswog, S., Shibata, M., Tanaka, M., Horst, A. J. van der, Cano, Z., Fynbo, J. P. U., Fruchter, A. S., Greiner, J., Heintz, K. E., Higgins, A., Hjorth, J., Izzo, L., Jakobsson, P., Kann, D. A., O'Brien, P. T., Perley, D. A., Pian, E., Pugliese, G., Starling, R. L. C., Thöne, C. C., Watson, D., Wijers, R. A. M. J., Xu, D.

“…We report our identification of the optical afterglow and host galaxy of the short-duration gamma-ray burst sGRB 160821B. The spectroscopic redshift of the…”
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THE SWIFT GRB HOST GALAXY LEGACY SURVEY. II. REST-FRAME NEAR-IR LUMINOSITY DISTRIBUTION AND EVIDENCE FOR A NEAR-SOLAR METALLICITY THRESHOLD by Perley, D. A., Tanvir, N. R., Hjorth, J., Laskar, T., Berger, E., Chary, R., Postigo, A. de Ugarte, Fynbo, J. P. U., Krühler, T., Levan, A. J., Micha owski, M. J., Schulze, S.

“…ABSTRACT We present rest-frame near-IR (NIR) luminosities and stellar masses for a large and uniformly selected population of gamma-ray burst (GRB) host…”
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Low frequency view of GRB 190114C reveals time varying shock micro-physics by Misra, K, Resmi, L, Kann, D A, Marongiu, M, Moin, A, Klose, S, Bernardi, G, de Ugarte Postigo, A, Jaiswal, V K, Schulze, S, Perley, D A, Ghosh, A, Kumar, H, Gupta, R, Michałowski, M J, Martín, S, Cockeram, A, Cherukuri, S V, Bhalerao, V, Anderson, G E, Pandey, S B, Anupama, G C, Thöne, C C, Barway, S, Wieringa, M H, Fynbo, J P U, Habeeb, N

“…ABSTRACT We present radio and optical afterglow observations of the TeV-bright long gamma-ray burst 190114C at a redshift of z = 0.425, which was detected by…”
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THE SWIFT GAMMA-RAY BURST HOST GALAXY LEGACY SURVEY. I. SAMPLE SELECTION AND REDSHIFT DISTRIBUTION by Perley, D. A., Krühler, T., Schulze, S., de Ugarte Postigo, A., Hjorth, J., Berger, E., Cenko, S. B., Chary, R., Cucchiara, A., Ellis, R., Fong, W., Fynbo, J. P. U., Gorosabel, J., Greiner, J., Jakobsson, P., Kim, S., Laskar, T., Levan, A. J., Micha owski, M. J., Milvang-Jensen, B., Tanvir, N. R., Thöne, C. C., Wiersema, K.

“…ABSTRACT We introduce the Swift Gamma-Ray Burst Host Galaxy Legacy Survey ("SHOALS"), a multi-observatory high-redshift galaxy survey targeting the largest…”
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On the nature of the 'hostless' short GRBs by Tunnicliffe, R. L., Levan, A. J., Tanvir, N. R., Rowlinson, A., Perley, D. A., Bloom, J. S., Cenko, S. B., O'Brien, P. T., Cobb, B. E., Wiersema, K., Malesani, D., de Ugarte Postigo, A., Hjorth, J., Fynbo, J. P. U., Jakobsson, P.

“…A significant proportion (∼30 per cent) of the short-duration gamma-ray bursts (SGRBs) localized by Swift have no detected host galaxy coincident with the…”
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The warm, the excited, and the molecular gas: GRB 121024A shining through its star-forming galaxy by Friis, M., De Cia, A., Krühler, T., Fynbo, J. P. U., Ledoux, C., Vreeswijk, P. M., Watson, D. J., Malesani, D., Gorosabel, J., Starling, R. L. C., Jakobsson, P., Varela, K., Wiersema, K., Drachmann, A. P., Trotter, A., Thöne, C. C., de Ugarte Postigo, A., D'Elia, V., Elliott, J., Maturi, M., Goldoni, P., Greiner, J., Haislip, J., Kaper, L., Knust, F., LaCluyze, A., Milvang-Jensen, B., Reichart, D., Schulze, S., Sudilovsky, V., Tanvir, N., Vergani, S. D.

“…We present the first reported case of the simultaneous metallicity determination of a gamma-ray burst (GRB) host galaxy, from both afterglow absorption lines…”
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Rocking the BOAT: the ups and downs of the long-term radio light curve for GRB 221009A by Rhodes, L, van der Horst, A J, Bright, J S, Leung, J K, Anderson, G E, Fender, R, Fernandez, J F Agüí, Bremer, M, Chandra, P, Dobie, D, Farah, W, Giarratana, S, Gourdji, K, Green, D A, Lenc, E, Michałowski, M J, Murphy, T, Nayana, A J, Pollak, A W, Rowlinson, A, Schussler, F, Siemion, A, Starling, R L C, Scott, P, Thöne, C C, Titterington, D, de Ugarte Postigo, A

“…ABSTRACT We present radio observations of the long-duration gamma-ray burst (GRB) 221009A that has become known to the community as the Brightest Of All Time…”
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GRB 100219A with X-shooter - abundances in a galaxy at z =4.7 by Thöne, C. C., Fynbo, J. P. U., Goldoni, P., de Ugarte, A. Postigo, Campana, S., Vergani, S. D., Covino, S., Krühler, T., Kaper, L., Tanvir, N., Zafar, T., D'Elia, V., Gorosabel, J., Greiner, J., Groot, P., Hammer, F., Jakobsson, P., Klose, S., Levan, A. J., Milvang-Jensen, B., Nicuesa, A. Guelbenzu, Palazzi, E., Piranomonte, S., Tagliaferri, G., Watson, D., Wiersema, K., Wijers, R. A. M. J.

“…Abundances of galaxies at redshifts z > 4 are difficult to obtain from damped Lyα (DLA) systems in the sightlines of quasars (QSOs) due to the Lyα forest…”
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Discovery of the afterglow and host galaxy of the low-redshift short GRB 080905A by Rowlinson, A., Wiersema, K., Levan, A. J., Tanvir, N. R., O'Brien, P. T., Rol, E., Hjorth, J., Thöne, C. C., de Ugarte Postigo, A., Fynbo, J. P. U., Jakobsson, P., Pagani, C., Stamatikos, M.

“…We present the discovery of short GRB 080905A, its optical afterglow and host galaxy. Initially discovered by Swift, our deep optical observations enabled the…”
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GRB 090313 and the Origin of Optical Peaks in Gamma-ray Burst Light Curves: Implications for Lorentz Factors and Radio Flares by Melandri, A, Kobayashi, S, Mundell, C. G, Guidorzi, C, de Ugarte Postigo, A, Pooley, G, Yoshida, M, Bersier, D, Castro-Tirado, A. J, Jelínek, M, Gomboc, A, Gorosabel, J, Kubánek, P, Bremer, M, Winters, J. M, Steele, I. A, de Gregorio-Monsalvo, I, Smith, R. J, García-Appadoo, D, Sota, A, Lundgren, A

“…We use a sample of 19 gamma-ray bursts (GRBs) that exhibit single-peaked optical light curves to test the standard fireball model by investigating the…”
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GRB 051008: a long, spectrally hard dust-obscured GRB in a Lyman-break galaxy at z ≈ 2.8 by Volnova, A. A., Pozanenko, A. S., Gorosabel, J., Perley, D. A., Frederiks, D. D., Kann, D. A., Rumyantsev, V. V., Biryukov, V. V., Burkhonov, O., Castro-Tirado, A. J., Ferrero, P., Golenetskii, S. V., Klose, S., Loznikov, V. M., Minaev, P. Yu, Stecklum, B., Svinkin, D. S., Tsvetkova, A. E., de Ugarte Postigo, A., Ulanov, M. V.

“…We present observations of the dark gamma-ray burst GRB 051008 provided by Swift/BAT, Swift/XRT, Konus-WIND, INTEGRAL/SPI-ACS in the high-energy domain and the…”
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The optical counterpart of the bright X-ray transient Swift J1745−26 by Muñoz-Darias, T., de Ugarte Postigo, A., Russell, D. M., Guziy, S., Gorosabel, J., Casares, J., Armas Padilla, M., Charles, P. A., Fender, R. P., Belloni, T. M., Lewis, F., Motta, S., Castro-Tirado, A., Mundell, C. G., Sánchez-Ramírez, R., Thöne, C. C.

“…We present a 30-day monitoring campaign of the optical counterpart of the bright X-ray transient Swift J1745−26, starting only 19 min after the discovery of…”
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Spectroscopy of superluminous supernova host galaxies. A preference of hydrogen-poor events for extreme emission line galaxies by Leloudas, G, Schulze, S, Kruehler, T, Gorosabel, J, Christensen, L, Mehner, A, de Ugarte Postigo, A, Amorin, R, Thone, C C, Anderson, J P, Bauer, F E, Gallazzi, A, Helminiak, K G, Hjorth, J, Ibar, E, Malesani, D, Morell, N, Vinko, J, Wheeler, J C

“…Superluminous supernovae (SLSNe) are very bright explosions that were only discovered recently and that show a preference for occurring in faint dwarf…”
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The fraction of ionizing radiation from massive stars that escapes to the intergalactic medium by Tanvir, N R, Fynbo, J P U, Postigo, A de Ugarte, Japelj, J, Wiersema, K, Malesani, D, Perley, D A, Levan, A J, Selsing, J, Cenko, S B, Kann, D A, Milvang-Jensen, B, Berger, E, Cano, Z, Chornock, R, Covino, S, Cucchiara, A, D’Elia, V, Gargiulo, A, Goldoni, P, Gomboc, A, Heintz, K E, Hjorth, J, Izzo, L, Jakobsson, P, Kaper, L, Krühler, T, Laskar, T, Myers, M, Piranomonte, S, Pugliese, G, Rossi, A, Sánchez-Ramírez, R, Schulze, S, Sparre, M, Stanway, E R, Tagliaferri, G, Thöne, C C, Vergani, S, Vreeswijk, P M, Wijers, R A M J, Watson, D, Xu, D

“…Whether stars could have driven the reionization of the intergalactic medium depends critically on the proportion of ionizing radiation that escapes the…”
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Laser Guide Star uplink beam: scattering and Raman emission measurements with the 10.4m Gran Telescopio CANARIAS by Lombardi, G, Bonaccini Calia, D, Centrone, M, de Ugarte Postigo, A, Geier, S

“…ABSTRACT Laser Guide Star Adaptive Optics (LGS-AO) is becoming routine in several astronomical observatories. The use of powerful lasers generates sensible…”
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Polarimetry of the superluminous transient ASASSN-15lh by Maund, J R, Leloudas, G, Malesani, D B, Patat, F, Sollerman, J, de Ugarte Postigo, A

“…ABSTRACT ASASSN-15lh is the intrinsically brightest transient observed to date. Despite being the subject of concerted photometric and spectroscopic observing…”
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Mass and metallicity scaling relations of high-redshift star-forming galaxies selected by GRBs by Arabsalmani, M., Møller, P., Perley, D. A., Freudling, W., Fynbo, J. P. U., Le Floc'h, E., Zwaan, M. A., Schulze, S., Tanvir, N. R., Christensen, L., Levan, A. J., Jakobsson, P., Malesani, D., Cano, Z., Covino, S., D'Elia, V., Goldoni, P., Gomboc, A., Heintz, K. E., Sparre, M., de Ugarte Postigo, A., Vergani, S. D.

“…Abstract We present a comprehensive study of the relations between gas kinematics, metallicity and stellar mass in a sample of 82 gamma-ray burst…”
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Beryllium detection in the very fast nova ASASSN-16kt (V407 Lupi) by Izzo, L, Molaro, P, Bonifacio, P, Della Valle, M, Cano, Z, de Ugarte Postigo, A, Prieto, J L, Thöne, C, Vanzi, L, Zapata, A, Fernandez, D

“…Abstract We present high-resolution spectroscopic observations of the fast nova ASASSN-16kt (V407 Lup). A close inspection of spectra obtained at early stages…”
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THE OPTICALLY UNBIASED GRB HOST (TOUGH) SURVEY. VII. THE HOST GALAXY LUMINOSITY FUNCTION: PROBING THE RELATIONSHIP BETWEEN GRBs AND STAR FORMATION TO REDSHIFT ∼6 by Schulze, S., Chapman, R., Hjorth, J., Levan, A. J., Jakobsson, P., Björnsson, G., Perley, D. A., Krühler, T., Gorosabel, J., Tanvir, N. R., Postigo, A. de Ugarte, Fynbo, J. P. U., Milvang-Jensen, B., Møller, P., Watson, D. J.

“…ABSTRACT Gamma-ray bursts (GRBs) offer a route to characterizing star-forming galaxies and quantifying high-z star formation that is distinct from the approach…”
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A young stellar environment for the superluminous supernova PTF12dam by Thöne, C. C., de Ugarte Postigo, A., García-Benito, R., Leloudas, G., Schulze, S., Amorín, R.

“…The progenitors of superluminous supernovae (SLSNe) are still a mystery. Hydrogen-poor SLSN hosts are young, highly star-forming dwarf galaxies and the…”
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