Skip to main content
Home
Department Of Physics text logo
  • Research
    • Our research
    • Our research groups
    • Our research in action
    • Research funding support
    • Summer internships for undergraduates
  • Study
    • Undergraduates
    • Postgraduates
  • Engage
    • For alumni
    • For business
    • For schools
    • For the public
  • Support
Menu
where I'd like to be ...

Prof Subir Sarkar

Professor Emeritus

Research theme

  • Particle astrophysics & cosmology
  • Fundamental particles and interactions

Sub department

  • Rudolf Peierls Centre for Theoretical Physics

Research groups

  • Particle theory
Subir.Sarkar@physics.ox.ac.uk
Telephone: 01865 (2)73962
Rudolf Peierls Centre for Theoretical Physics, room 60.12
Old homepage
Brief CV
  • About
  • Research
  • Teaching
  • Service
  • Outreach
  • Awards/News
  • IceCube@Oxford
  • Publications

IceCube

Physics World 2013 Breakthrough of the Year
IceCube at Oxford

I am a member since 2004 of the IceCube collaboration which discovered cosmic high energy neutrinos and identified some of their astrophysical sources.

IceCube @ Oxford

Transverse oscillations in a coronal loop triggered by a jet

(2016)

Authors:

S Sarkar, V Pant, AK Srivastava, D Banerjee
More details from the publisher

Very high-energy gamma-ray follow-up program using neutrino triggers from IceCube

Journal of Instrumentation Institute of Physics 11:11 (2016) P11009

Authors:

MG Aartsen, K Abraham, M Ackermann, Subir Sarkar

Abstract:

We describe and report the status of a neutrino-triggered program in IceCube that generates real-time alerts for gamma-ray follow-up observations by atmospheric-Cherenkov telescopes (MAGIC and VERITAS). While IceCube is capable of monitoring the whole sky continuously, high-energy gamma-ray telescopes have restricted fields of view and in general are unlikely to be observing a potential neutrino-flaring source at the time such neutrinos are recorded. The use of neutrino-triggered alerts thus aims at increasing the availability of simultaneous multi-messenger data during potential neutrino flaring activity, which can increase the discovery potential and constrain the phenomenological interpretation of the high-energy emission of selected source classes (e.g. blazars). The requirements of a fast and stable online analysis of potential neutrino signals and its operation are presented, along with first results of the program operating between 14 March 2012 and 31 December 2015.
More details from the publisher
Details from ORA
More details
Details from ArXiV
More details

Marginal evidence for cosmic acceleration from Type Ia supernovae

Scientific Reports Springer Nature 6:1 (2016) 35596

Authors:

JT Nielsen, A Guffanti, Subir Sarkar

Abstract:

The ‘standard’ model of cosmology is founded on the basis that the expansion rate of the universe is accelerating at present — as was inferred originally from the Hubble diagram of Type Ia supernovae. There exists now a much bigger database of supernovae so we can perform rigorous statistical tests to check whether these ‘standardisable candles’ indeed indicate cosmic acceleration. Taking account of the empirical procedure by which corrections are made to their absolute magnitudes to allow for the varying shape of the light curve and extinction by dust, we find, rather surprisingly, that the data are still quite consistent with a constant rate of expansion.
More details from the publisher
Details from ORA
More details

Contributions of the Cherenkov Telescope Array (CTA) to the 6th International Symposium on High-Energy Gamma-Ray Astronomy (Gamma 2016)

(2016)

Authors:

The CTA Consortium, :, A Abchiche, U Abeysekara, Ó Abril, F Acero, BS Acharya, C Adams, G Agnetta, F Aharonian, A Akhperjanian, A Albert, M Alcubierre, J Alfaro, R Alfaro, AJ Allafort, R Aloisio, J-P Amans, E Amato, L Ambrogi, G Ambrosi, M Ambrosio, J Anderson, M Anduze, EO Angüner, E Antolini, LA Antonelli, M Antonucci, V Antonuccio, P Antoranz, C Aramo, A Aravantinos, M Araya, C Arcaro, B Arezki, A Argan, T Armstrong, F Arqueros, L Arrabito, M Arrieta, K Asano, M Ashley, P Aubert, CB Singh, A Babic, M Backes, A Bais, S Bajtlik, C Balazs, M Balbo, D Balis, C Balkowski, O Ballester, J Ballet, A Balzer, A Bamba, R Bandiera, A Barber, C Barbier, M Barcelo, M Barkov, A Barnacka, U Barres de Almeida, JA Barrio, S Basso, D Bastieri, C Bauer, U Becciani, Y Becherini, J Becker Tjus, V Beckmann, W Bednarek, W Benbow, D Benedico Ventura, J Berdugo, D Berge, E Bernardini, MG Bernardini, S Bernhard, K Bernlöhr, B Bertucci, M-A Besel, V Beshley, N Bhatt, P Bhattacharjee, W Bhattacharyya, S Bhattachryya, B Biasuzzi, G Bicknell, C Bigongiari, A Biland, A Bilinsky, W Bilnik, B Biondo, R Bird, T Bird, E Bissaldi, M Bitossi, O Blanch, P Blasi, J Blazek, C Bockermann, C Boehm, L Bogacz, M Bogdan, M Bohacova, C Boisson, J Boix, J Bolmont, G Bonanno, A Bonardi, C Bonavolontà, P Bonifacio, F Bonnarel, G Bonnoli, J Borkowski, R Bose, Z Bosnjak, M Böttcher, J-J Bousquet, C Boutonnet, F Bouyjou, L Bowman, C Braiding, T Brantseg, S Brau-Nogué, J Bregeon, M Briggs, M Brigida, T Bringmann, W Brisken, D Bristow, R Britto, E Brocato, S Bron, P Brook, W Brooks, AM Brown, K Brügge, F Brun, P Brun, P Brun, G Brunetti, L Brunetti, P Bruno, T Buanes, N Bucciantini, G Buchholtz, J Buckley, V Bugaev, R Bühler, A Bulgarelli, T Bulik, M Burton, A Burtovoi, G Busetto, S Buson, J Buss, K Byrum, F Cadoux, J Calvo Tovar, R Cameron, F Canelli, R Canestrari, M Capalbi, M Capasso, G Capobianco, A Caproni, P Caraveo, J Cardenzana, M Cardillo, S Carius, C Carlile, A Carosi, R Carosi, E Carquín, J Carr, M Carroll, J Carter, P-H Carton, J-M Casandjian, S Casanova, S Casanova, E Cascone, M Casiraghi, A Castellina, J Castroviejo Mora, F Catalani, O Catalano, S Catalanotti, D Cauz, S Cavazzani, P Cerchiara, E Chabanne, P Chadwick, T Chaleil, C Champion, A Chatterjee, S Chaty, R Chaves, A Chen, X Chen, X Chen, K Cheng, M Chernyakova, L Chiappetti, M Chikawa, D Chinn, VR Chitnis, N Cho, A Christov, J Chudoba, M Cieślar, MA Ciocci, R Clay, S Colafrancesco, P Colin, J-M Colley, E Colombo, J Colome, S Colonges, V Conforti, V Connaughton, S Connell, J Conrad, JL Contreras, P Coppi, S Corbel, J Coridian, R Cornat, P Corona, D Corti, J Cortina, L Cossio, A Costa, H Costantini, G Cotter, B Courty, S Covino, G Covone, G Crimi, SJ Criswell, R Crocker, J Croston, J Cuadra, P Cumani, G Cusumano, P Da Vela, Ø Dale, F D'Ammando, D Dang, VT Dang, L Dangeon, M Daniel, I Davids, I Davids, B Dawson, F Dazzi, B de Aguiar Costa, A De Angelis, RF de Araujo Cardoso, V De Caprio, R de Cássia dos Anjos, G De Cesare, A De Franco, F De Frondat, EM de Gouveia Dal Pino, I de la Calle, C De Lisio, R de los Reyes Lopez, B De Lotto, A De Luca, JRT de Mello Neto, M de Naurois, E de Oña Wilhelmi, F De Palma, F De Persio, V de Souza, G Decock, J Decock, C Deil, M Del Santo, E Delagnes, G Deleglise, C Delgado, J Delgado, D della Volpe, P Deloye, M Detournay, A Dettlaff, J Devin, T Di Girolamo, C Di Giulio, A Di Paola, F Di Pierro, MA Diaz, C Díaz, C Dib, J Dick, H Dickinson, S Diebold, S Digel, J Dipold, G Disset, A Distefano, A Djannati-Ataï, M Doert, M Dohmke, A Domínguez, N Dominik, J-L Dominique, D Dominis Prester, A Donat, I Donnarumma, D Dorner, M Doro, J-L Dournaux, T Downes, K Doyle, G Drake, S Drappeau, H Drass, D Dravins, L Drury, G Dubus, L Ducci, D Dumas, K Dundas Morå, D Durand, D D'Urso, V Dwarkadas, J Dyks, M Dyrda, J Ebr, E Edy, K Egberts, P Eger, A Egorov, S Einecke, J Eisch, F Eisenkolb, C Eleftheriadis, D Elsaesser, D Elsässer, D Emmanoulopoulos, C Engelbrecht, D Engelhaupt, J-P Ernenwein, P Escarate, S Eschbach, C Espinoza, P Evans, M Fairbairn, D Falceta-Goncalves, A Falcone, V Fallah Ramazani, D Fantinel, K Farakos, C Farnier, E Farrell, G Fasola, Y Favre, E Fede, R Fedora, E Fedorova, S Fegan, D Ferenc, M Fernandez-Alonso, A Fernández-Barral, G Ferrand, O Ferreira, M Fesquet, P Fetfatzis, E Fiandrini, A Fiasson, A Filipčič, M Filipovic, D Fink, C Finley, JP Finley, A Finoguenov, V Fioretti, M Fiorini, H Fleischhack, H Flores, D Florin, C Föhr, E Fokitis, MV Fonseca, L Font, G Fontaine, B Fontes, M Fornasa, M Fornasa, A Förster, P Fortin, L Fortson, N Fouque, A Franckowiak, A Franckowiak, FJ Franco, I Freire Mota Albuquerque, L Freixas Coromina, L Fresnillo, C Fruck, M Fuessling, D Fugazza, Y Fujita, S Fukami, Y Fukazawa, T Fukuda, Y Fukui, S Funk, A Furniss, W Gäbele, S Gabici, A Gadola, D Galindo, DD Gall, Y Gallant, D Galloway, S Gallozzi, JA Galvez, S Gao, A Garcia, B Garcia, R García Gil, R Garcia López, M Garczarczyk, D Gardiol, C Gargano, F Gargano, S Garozzo, F Garrecht, L Garrido, M Garrido-Ruiz, D Gascon, J Gaskins, J Gaudemard, M Gaug, J Gaweda, B Gebhardt, M Gebyehu, N Geffroy, B Genolini, L Gerard, A Ghalumyan, A Ghedina, P Ghislain, P Giammaria, E Giannakaki, F Gianotti, S Giarrusso, G Giavitto, B Giebels, T Gieras, N Giglietto, V Gika, R Gimenes, M Giomi, P Giommi, F Giordano, G Giovannini, P Girardot, E Giro, M Giroletti, J Gironnet, A Giuliani, J-F Glicenstein, R Gnatyk, N Godinovic, P Goldoni, G Gomez, MM Gonzalez, A González, D Gora, KS Gothe, D Gotz, J Goullon, T Grabarczyk, R Graciani, J Graham, P Grandi, J Granot, G Grasseau, R Gredig, AJ Green, AM Green, T Greenshaw, I Grenier, S Griffiths, A Grillo, M-H Grondin, J Grube, M Grudzinska, J Grygorczuk, V Guarino, D Guberman, S Gunji, G Gyuk, D Hadasch, A Hagedorn, L Hagge, J Hahn, H Hakobyan, S Hara, MJ Hardcastle, T Hassan, K Hatanaka, T Haubold, A Haupt, T Hayakawa, M Hayashida, M Heller, R Heller, JC Helo, F Henault, G Henri, G Hermann, R Hermel, J Herrera Llorente, J Herrera Llorente, A Herrero, O Hervet, N Hidaka, J Hinton, W Hirai, K Hirotani, B Hnatyk, J Hoang, D Hoffmann, W Hofmann, T Holch, J Holder, S Hooper, D Horan, J Hörandel, M Hörbe, D Horns, P Horvath, J Hose, J Houles, T Hovatta, M Hrabovsky, D Hrupec, J-M Huet, M Huetten, G Hughes, D Hui, TB Humensky, M Hussein, M Iacovacci, A Ibarra, Y Ikeno, JM Illa, D Impiombato, T Inada, S Incorvaia, L Infante, Y Inome, S Inoue, T Inoue, Y Inoue, F Iocco, K Ioka, M Iori, K Ishio, K Ishio, GL Israel, Y Iwamura, C Jablonski, A Jacholkowska, J Jacquemier, M Jamrozy, P Janecek, M Janiak, D Jankowsky, F Jankowsky, P Jean, I Jegouzo, P Jenke, JJ Jimenez, M Jingo, M Jingo, L Jocou, T Jogler, CA Johnson, M Jones, M Josselin, L Journet, I Jung, P Kaaret, M Kagaya, J Kakuwa, O Kalekin, C Kalkuhl, H Kamon, R Kankanyan, A Karastergiou, K Kärcher, M Karczewski, S Karkar, P Karn, J Kasperek, H Katagiri, J Kataoka, K Katarzyński, S Kato, U Katz, N Kawanaka, L Kaye, D Kazanas, N Kelley-Hoskins, J Kersten, B Khélifi, DB Kieda, T Kihm, S Kimeswenger, S Kisaka, S Kishida, R Kissmann, S Klepser, W Kluźniak, J Knapen, J Knapp, J Knödlseder, B Koch, F Köck, J Kocot, K Kohri, K Kokkotas, K Kokkotas, D Kolitzus, N Komin, I Kominis, A Kong, Y Konno, K Kosack, G Koss, M Kossatz, G Kowal, S Koyama, J Kozioł, M Kraus, J Krause, M Krause, H Krawzcynski, F Krennrich, A Kretzschmann, P Kruger, H Kubo, V Kudryavtsev, G Kukec Mezek, M Kuklis, H Kuroda, J Kushida, A La Barbera, N La Palombara, V La Parola, G La Rosa, H Laffon, R Lahmann, M Lakicevic, K Lalik, G Lamanna, D Landriu, H Landt, RG Lang, J Lapington, P Laporte, J-P Le Fèvre, T Le Flour, P Le Sidaner, S-H Lee, WH Lee, J-P Lees, J Lefaucheur, K Leffhalm, H Leich, MA Leigui de Oliveira, D Lelas, A Lemière, M Lemoine-Goumard, J-P Lenain, R Leonard, R Leoni, L Lessio, G Leto, A Leveque, B Lieunard, M Limon, R Lindemann, E Lindfors, L Linhoff, A Liolios, A Lipniacka, H Lockart, T Lohse, E Łokas, S Lombardi, F Longo, A Lopatin, M Lopez, D Loreggia, T Louge, F Louis, M Louys, F Lucarelli, D Lucchesi, H Lüdecke, T Luigi, PL Luque-Escamilla, E Lyard, MC Maccarone, T Maccarone, TJ Maccarone, E Mach, GM Madejski, A Madonna, F Magniette, A Magniez, M Mahabir, G Maier, P Majumdar, P Majumdar, M Makariev, G Malaguti, G Malaspina, AK Mallot, A Malouf, S Maltezos, D Malyshev, A Mancilla, D Mandat, G Maneva, M Manganaro, S Mangano, P Manigot, N Mankushiyil, K Mannheim, N Maragos, D Marano, P Marchegiani, JA Marcomini, A Marcowith, M Mariotti, M Marisaldi, S Markoff, C Martens, J Martí, J-M Martin, L Martin, P Martin, G Martínez, M Martínez, O Martínez, K Martynyuk-Lototskyy, R Marx, N Masetti, P Massimino, A Mastichiadis, S Mastroianni, M Mastropietro, S Masuda, H Matsumoto, S Matsuoka, N Matthews, S Mattiazzo, G Maurin, N Maxted, N Maxted, J Maya, M Mayer, D Mazin, MN Mazziotta, L Mc Comb, N McCubbin, I McHardy, C Medina, F Mehrez, C Melioli, D Melkumyan, T Melse, S Mereghetti, M Merk, P Mertsch, J-L Meunier, T Meures, M Meyer, JL Meyrelles, A Miccichè, T Michael, J Michałowski, P Mientjes, I Mievre, A Mihailidis, J Miller, T Mineo, M Minuti, N Mirabal, F Mirabel, JM Miranda, R Mirzoyan, A Mitchell, T Mizuno, R Moderski, I Mognet, M Mohammed, R Moharana, L Mohrmann, E Molinari, P Molyneux, E Monmarthe, G Monnier, T Montaruli, C Monte, I Monteiro, D Mooney, P Moore, A Moralejo, C Morello, E Moretti, K Mori, P Morris, A Morselli, F Moscato, D Motohashi, F Mottez, Y Moudden, E Moulin, S Mueller, R Mukherjee, P Munar, M Munari, C Mundell, J Mundet, H Muraishi, K Murase, A Muronga, A Murphy, N Nagar, S Nagataki, T Nagayoshi, BK Nagesh, T Naito, D Nakajima, D Nakajima, T Nakamori, K Nakayama, J Nanni, D Naumann, P Nayman, L Nellen, R Nemmen, A Neronov, N Neyroud, T Nguyen, TT Nguyen, T Nguyen Trung, L Nicastro, J Nicolau-Kukliński, F Niederwanger, A Niedźwiecki, J Niemiec, D Nieto, M Nievas-Rosillo, A Nikolaidis, M Nikołajuk, K Nishijima, K-I Nishikawa, G Nishiyama, K Noda, K Noda, L Nogues, S Nolan, R Northrop, D Nosek, M Nöthe, B Novosyadlyj, L Nozka, F Nunio, L Oakes, P O'Brien, C Ocampo, G Occhipinti, JP Ochoa, A OFaolain de Bhroithe, R Oger, Y Ohira, M Ohishi, S Ohm, H Ohoka, N Okazaki, A Okumura, J-F Olive, D Olszowski, RA Ong, S Ono, M Orienti, R Orito, A Orlati, J Osborne, M Ostrowski, D Ottaway, N Otte, S Öttl, E Ovcharov, I Oya, A Ozieblo, M Padovani, I Pagano, S Paiano, A Paizis, J Palacio, M Palatka, J Pallotta, K Panagiotidis, J-L Panazol, D Paneque, M Panter, MR Panzera, R Paoletti, M Paolillo, A Papayannis, G Papyan, A Paravac, JM Paredes, G Pareschi, N Park, D Parsons, P Paśko, S Pavy, M Pech, A Peck, G Pedaletti, A Pe'er, S Peet, D Pelat, A Pepato, MDC Perez, L Perri, M Perri, M Persic, M Persic, A Petrashyk, P-O Petrucci, O Petruk, B Peyaud, M Pfeifer, G Pfeiffer, G Piano, D Pieloth, E Pierre, F Pinto de Pinho, C Pio García, Y Piret, A Pisarski, S Pita, Ł Platos, R Platzer, S Podkladkin, L Pogosyan, M Pohl, P Poinsignon, A Pollo, A Porcelli, J Porthault, W Potter, S Poulios, J Poutanen, E Prandini, E Prandini, J Prast, K Pressard, G Principe, F Profeti, D Prokhorov, H Prokoph, M Prouza, R Pruchniewicz, G Pruteanu, E Pueschel, G Pühlhofer, I Puljak, M Punch, S Pürckhauer, R Pyzioł, F Queiroz, EJ Quel, J Quinn, A Quirrenbach, I Rafighi, S Rainò, PJ Rajda, M Rameez, R Rando, RC Rannot, M Rataj, T Ravel, S Razzaque, P Reardon, I Reichardt, O Reimann, A Reimer, O Reimer, A Reisenegger, M Renaud, S Renner, T Reposeur, B Reville, A Rezaeian, W Rhode, D Ribeiro, R Ribeiro Prado, M Ribó, G Richards, MG Richer, T Richtler, J Rico, J Ridky, F Rieger, M Riquelme, PR Ristori, S Rivoire, V Rizi, E Roache, J Rodriguez, G Rodriguez Fernandez, JJ Rodríguez Vázquez, G Rojas, P Romano, G Romeo, M Roncadelli, J Rosado, J Rose, S Rosen, S Rosier Lees, D Ross, G Rouaix, J Rousselle, AC Rovero, G Rowell, F Roy, S Royer, A Rubini, B Rudak, A Rugliancich, W Rujopakarn, C Rulten, M Rupiński, F Russo, F Russo, K Rutkowski, O Saavedra, S Sabatini, B Sacco, I Sadeh, EO Saemann, S Safi-Harb, A Saggion, V Sahakian, T Saito, N Sakaki, S Sakurai, A Salamon, M Salega, D Salek, F Salesa Greus, J Salgado, G Salina, L Salinas, A Salini, D Sanchez, M Sanchez-Conde, H Sandaker, A Sandoval, P Sangiorgi, M Sanguillon, H Sano, M Santander, A Santangelo, EM Santos, R Santos-Lima, A Sanuy, L Sapozhnikov, S Sarkar, K Satalecka, K Satalecka, Y Sato, R Savalle, M Sawada, F Sayède, S Schanne, T Schanz, EJ Schioppa, S Schlenstedt, J Schmid, T Schmidt, J Schmoll, M Schneider, H Schoorlemmer, P Schovanek, A Schubert, E-M Schullian, J Schultze, A Schulz, S Schulz, K Schure, F Schussler, T Schwab, U Schwanke, J Schwarz, T Schweizer, S Schwemmer, U Schwendicke, C Schwerdt, E Sciacca, S Scuderi, A Segreto, J-H Seiradakis, GH Sembroski, D Semikoz, O Sergijenko, N Serre, M Servillat, K Seweryn, N Shafi, A Shalchi, M Sharma, M Shayduk, RC Shellard, T Shibata, A Shigenaka, I Shilon, E Shum, L Sidoli, M Sidz, J Sieiro, H Siejkowski, J Silk, A Sillanpää, D Simone, H Simpson, BB Singh, A Sinha, G Sironi, J Sitarek, P Sizun, V Sliusar, V Sliusar, A Smith, D Sobczyńska, H Sol, G Sottile, M Sowiński, F Spanier, G Spengler, R Spiga, R Stadler, O Stahl, A Stamerra, S Stanič, R Starling, D Staszak, Ł Stawarz, R Steenkamp, S Stefanik, C Stegmann, S Steiner, C Stella, M Stephan, N Stergioulas, R Sternberger, M Sterzel, B Stevenson, F Stinzing, M Stodulska, M Stodulski, T Stolarczyk, G Stratta, U Straumann, L Stringhetti, M Strzys, R Stuik, K-H Sulanke, T Suomijärvi, AD Supanitsky, T Suric, I Sushch, P Sutcliffe, J Sykes, M Szanecki, T Szepieniec, P Szwarnog, A Tacchini, K Tachihara, G Tagliaferri, H Tajima, H Takahashi, K Takahashi, M Takahashi, L Takalo, S Takami, J Takata, J Takeda, G Talbot, T Tam, M Tanaka, S Tanaka, T Tanaka, Y Tanaka, C Tanci, S Tanigawa, M Tavani, F Tavecchio, J-P Tavernet, K Tayabaly, A Taylor, LA Tejedor, I Telezhinsky, F Temme, P Temnikov, C Tenzer, Y Terada, JC Terrazas, R Terrier, D Terront, T Terzic, D Tescaro, M Teshima, M Teshima, V Testa, D Tezier, J Thayer, J Thornhill, S Thoudam, D Thuermann, L Tibaldo, A Tiengo, MC Timpanaro, D Tiziani, M Tluczykont, CJ Todero Peixoto, F Tokanai, M Tokarz, K Toma, J Tomastik, Y Tomono, A Tonachini, D Tonev, K Torii, M Tornikoski, DF Torres, M Torres, E Torresi, G Toso, G Tosti, T Totani, N Tothill, F Toussenel, G Tovmassian, T Toyama, P Travnicek, C Trichard, M Trifoglio, I Troyano Pujadas, M Trzeciak, K Tsinganos, S Tsujimoto, T Tsuru, Y Uchiyama, G Umana, Y Umetsu, SS Upadhya, M Uslenghi, V Vagelli, F Vagnetti, J Valdes-Galicia, M Valentino, P Vallania, L Valore, W van Driel, C van Eldik, B van Soelen, J Vandenbroucke, J Vanderwalt, G Vasileiadis, V Vassiliev, JR Vázquez, ML Vázquez Acosta, M Vecchi, A Vega, I Vegas, P Veitch, P Venault, L Venema, C Venter, S Vercellone, S Vergani, K Verma, V Verzi, GP Vettolani, C Veyssiere, A Viana, N Viaux, J Vicha, C Vigorito, P Vincent, S Vincent, J Vink, V Vittorini, N Vlahakis, L Vlahos, H Voelk, V Voisin, A Vollhardt, A Volpicelli, H von Brand, S Vorobiov, I Vovk, M Vrastil, LV Vu, T Vuillaume, R Wagner, R Wagner, SJ Wagner, SP Wakely, T Walstra, R Walter, T Walther, JE Ward, M Ward, K Warda, D Warren, S Wassberg, JJ Watson, P Wawer, R Wawrzaszek, N Webb, P Wegner, O Weiner, A Weinstein, R Wells, F Werner, H Wetteskind, M White, R White, M Więcek, A Wierzcholska, S Wiesand, R Wijers, P Wilcox, N Wild, A Wilhelm, M Wilkinson, M Will, M Will, DA Williams, JT Williams, R Willingale, N Wilson, M Winde, K Winiarski, H Winkler, M Winter, R Wischnewski, E Witt, P Wojcik, D Wolf, M Wood, A Wörnlein, E Wu, T Wu, KK Yadav, H Yamamoto, T Yamamoto, N Yamane, R Yamazaki, S Yanagita, L Yang, D Yelos, A Yoshida, M Yoshida, T Yoshida, S Yoshiike, T Yoshikoshi, P Yu, V Zabalza, D Zaborov, M Zacharias, G Zaharijas, A Zajczyk, L Zampieri, F Zandanel, R Zanmar Sanchez, D Zaric, D Zavrtanik, M Zavrtanik, A Zdziarski, A Zech, H Zechlin, A Zhao, V Zhdanov, A Ziegler, J Ziemann, K Ziętara, A Zink, J Ziółkowski, V Zitelli, A Zoli, J Zorn, P Żychowski
Details from ArXiV

Frames of most uniform Hubble flow

Journal of Cosmology and Astroparticle Physics IOP Publishing 2016:10 (2016) 1-17

Authors:

David Kraljic, Subir Sarkar

Abstract:

It has been observed [1,2] that the locally measured Hubble parameter converges quickest to the background value and the dipole structure of the velocity field is smallest in the reference frame of the Local Group of galaxies. We study the statistical properties of Lorentz boosts with respect to the Cosmic Microwave Background frame which make the Hubble flow look most uniform around a particular observer. We use a very large N-Body simulation to extract the dependence of the boost velocities on the local environment such as underdensities, overdensities, and bulk flows. We find that the observation [1,2] is not unexpected if we are located in an underdensity, which is indeed the case for our position in the universe. The amplitude of the measured boost velocity for our location is consistent with the expectation in the standard cosmology.
More details from the publisher
Details from ORA
More details
Details from ArXiV

Pagination

  • First page First
  • Previous page Prev
  • …
  • Page 154
  • Page 155
  • Page 156
  • Page 157
  • Current page 158
  • Page 159
  • Page 160
  • Page 161
  • Page 162
  • …
  • Next page Next
  • Last page Last

Footer Menu

  • Contact us
  • Giving to the Dept of Physics
  • Work with us
  • Media

User account menu

  • Log in

Follow us

FIND US

Clarendon Laboratory,

Parks Road,

Oxford,

OX1 3PU

CONTACT US

Tel: +44(0)1865272200

University of Oxfrod logo Department Of Physics text logo
IOP Juno Champion logo Athena Swan Silver Award logo

© University of Oxford - Department of Physics

Cookies | Privacy policy | Accessibility statement

Built by: Versantus

  • Home
  • Research
  • Study
  • Engage
  • Our people
  • News & Comment
  • Events
  • Our facilities & services
  • About us
  • Giving to Physics
  • Current students
  • Staff intranet