Extensive population synthesis of isolated neutron stars with field decay

AIP Conference Proceedings AIP Publishing 1379:1 (2011) 148-151

Authors:

SB Popov, PA Boldin, JA Miralles, JA Pons, B Posselt, Ersin Göğüş, Ünal Ertan, Tomaso Belloni

Millimeter Interferometer Observations of the Magnetar 4U 0142+61

AIP Conference Proceedings AIP Publishing 1379:1 (2011) 152-155

Authors:

B Posselt, K Schreyer, Ü Ertan, S Trippe, K Menten, B Klein, Ersin Göğüş, Ünal Ertan, Tomaso Belloni

Testing the jet quenching paradigm with an ultradeep observation of a steadily soft state black hole

Astrophysical Journal Letters 739:1 (2011)

Authors:

DM Russell, JCA Miller-Jones, TJ MacCarone, YJ Yang, RP Fender, F Lewis

Abstract:

We present ultradeep radio observations with the Expanded Very Large Array of 4U 1957+11, a Galactic black hole (BH) candidate X-ray binary known to exist in a persistent soft X-ray state. We derive a stringent upper limit of 11.4 μJy beam-1 (3σ) at 5-7 GHz, which provides the most rigorous upper limit to date on the presence of jets in a soft state BH X-ray binary (BHXB). X-ray, UV, and optical fluxes obtained within a few weeks of the radio data can be explained by thermal emission from the disk. At this X-ray luminosity, a hard state BHXB that follows the established empirical radio-X-ray correlation would be at least 330-810 times brighter at radio frequencies, depending on the distance to 4U 1957+11. This jet quenching of >2.5 orders of magnitude is greater than some models predict and implies that the jets are prevented from being launched altogether in the soft state. 4U 1957+11 is also more than one order of magnitude fainter than the faintest of the "radio-quiet" population of hard state BHs. In addition, we show that, on average, soft state stellar-mass BHs probably have fainter jets than most active galactic nuclei in a state equivalent to the soft state. These results have implications for the conditions required for powerful, relativistic jets to form and provide a new empirical constraint for time- and accretion mode-dependent jet models, furthering our understanding of jet production and accretion onto BHs. © 2011. The American Astronomical Society. All rights reserved.

Implementation and testing of the first prompt search for gravitational wave transients with electromagnetic counterparts

(2011)

Authors:

The LIGO Scientific Collaboration, Virgo Collaboration, J Abadie, BP Abbott, R Abbott, TD Abbott, M Abernathy, T Accadia, F Acernese, C Adams, R Adhikari, C Affeldt, P Ajith, B Allen, GS Allen, E Amador Ceron, D Amariutei, RS Amin, SB Anderson, WG Anderson, K Arai, MA Arain, MC Araya, SM Aston, P Astone, D Atkinson, P Aufmuth, C Aulbert, BE Aylott, S Babak, P Baker, G Ballardin, S Ballmer, D Barker, F Barone, B Barr, P Barriga, L Barsotti, M Barsuglia, MA Barton, I Bartos, R Bassiri, M Bastarrika, A Basti, J Batch, J Bauchrowitz, Th S Bauer, M Bebronne, B Behnke, MG Beker, AS Bell, A Belletoile, I Belopolski, M Benacquista, JM Berliner, A Bertolini, J Betzwieser, N Beveridge, PT Beyersdorf, IA Bilenko, G Billingsley, J Birch, R Biswas, M Bitossi, MA Bizouard, E Black, JK Blackburn, L Blackburn, D Blair, B Bland, M Blom, O Bock, TP Bodiya, C Bogan, R Bondarescu, F Bondu, L Bonelli, R Bonnand, R Bork, M Born, V Boschi, S Bose, L Bosi, B Bouhou, S Braccini, C Bradaschia, PR Brady, VB Braginsky, M Branchesi, JE Brau, J Breyer, T Briant, DO Bridges, A Brillet, M Brinkmann, V Brisson, M Britzger, AF Brooks, DA Brown, A Brummit, T Bulik, HJ Bulten, A Buonanno, J Burguet--Castell, O Burmeister, D Buskulic, C Buy, RL Byer, L Cadonati, G Cagnoli, J Cain, E Calloni, JB Camp, P Campsie, J Cannizzo, K Cannon, B Canuel, J Cao, CD Capano, F Carbognani, S Caride, S Caudill, M Cavaglià, F Cavalier, R Cavalieri, G Cella, C Cepeda, E Cesarini, O Chaibi, T Chalermsongsak, E Chalkley, P Charlton, E Chassande-Mottin, S Chelkowski, Y Chen, A Chincarini, A Chiummo, H Cho, N Christensen, SSY Chua, CTY Chung, S Chung, G Ciani, F Clara, DE Clark, J Clark, JH Clayton, F Cleva, E Coccia, P-F Cohadon, CN Colacino, J Colas, A Colla, M Colombini, A Conte, R Conte, D Cook, TR Corbitt, M Cordier, N Cornish, A Corsi, CA Costa, M Coughlin, J-P Coulon, P Couvares, DM Coward, DC Coyne, JDE Creighton, TD Creighton, AM Cruise, A Cumming, L Cunningham, E Cuoco, RM Cutler, K Dahl, SL Danilishin, R Dannenberg, S D'Antonio, K Danzmann, V Dattilo, B Daudert, H Daveloza, M Davier, G Davies, EJ Daw, R Day, T Dayanga, R De Rosa, D DeBra, G Debreczeni, J Degallaix, W Del Pozzo, M del Prete, T Dent, V Dergachev, R DeRosa, R DeSalvo, V Dhillon, S Dhurandhar, L Di Fiore, A Di Lieto, I Di Palma, M Di Paolo Emilio, A Di Virgilio, M Díaz, A Dietz, F Donovan, KL Dooley, S Dorsher, M Drago, RWP Drever, JC Driggers, Z Du, J-C Dumas, S Dwyer, T Eberle, M Edgar, M Edwards, A Effler, P Ehrens, G Endrőczi, R Engel, T Etzel, K Evans, M Evans, T Evans, M Factourovich, V Fafone, S Fairhurst, Y Fan, BF Farr, W Farr, D Fazi, H Fehrmann, D Feldbaum, I Ferrante, F Fidecaro, LS Finn, I Fiori, RP Fisher, R Flaminio, M Flanigan, S Foley, E Forsi, LA Forte, N Fotopoulos, J-D Fournier, J Franc, S Frasca, F Frasconi, M Frede, M Frei, Z Frei, A Freise, R Frey, TT Fricke, JK Fridriksson, D Friedrich, P Fritschel, VV Frolov, PJ Fulda, M Fyffe, M Galimberti, L Gammaitoni, MR Ganija, J Garcia, JA Garofoli, F Garufi, ME Gáspár, G Gemme, R Geng, E Genin, A Gennai, LÁ Gergely, S Ghosh, JA Giaime, S Giampanis, KD Giardina, A Giazotto, C Gill, E Goetz, LM Goggin, G González, ML Gorodetsky, S Goßler, R Gouaty, C Graef, M Granata, A Grant, S Gras, C Gray, N Gray, RJS Greenhalgh, AM Gretarsson, C Greverie, R Grosso, H Grote, S Grunewald, GM Guidi, C Guido, R Gupta, EK Gustafson, R Gustafson, T Ha, B Hage, JM Hallam, D Hammer, G Hammond, J Hanks, C Hanna, J Hanson, J Harms, GM Harry, IW Harry, ED Harstad, MT Hartman, K Haughian, K Hayama, J-F Hayau, T Hayler, J Heefner, A Heidmann, MC Heintze, H Heitmann, P Hello, MA Hendry, IS Heng, AW Heptonstall, V Herrera, M Hewitson, S Hild, D Hoak, KA Hodge, K Holt, J Homan, T Hong, S Hooper, DJ Hosken, J Hough, EJ Howell, B Hughey, S Husa, SH Huttner, T Huynh-Dinh, DR Ingram, R Inta, T Isogai, A Ivanov, K Izumi, M Jacobson, H Jang, P Jaranowski, WW Johnson, DI Jones, G Jones, R Jones, L Ju, P Kalmus, V Kalogera, I Kamaretsos, S Kandhasamy, G Kang, JB Kanner, E Katsavounidis, W Katzman, H Kaufer, K Kawabe, S Kawamura, F Kawazoe, W Kells, DG Keppel, Z Keresztes, A Khalaidovski, FY Khalili, EA Khazanov, B Kim, C Kim, D Kim, H Kim, K Kim, N Kim, Y-M Kim, PJ King, M Kinsey, DL Kinzel, JS Kissel, S Klimenko, K Kokeyama, V Kondrashov, R Kopparapu, S Koranda, WZ Korth, I Kowalska, D Kozak, V Kringel, S Krishnamurthy, B Krishnan, A Królak, G Kuehn, R Kumar, P Kwee, M Laas-Bourez, PK Lam, M Landry, M Lang, B Lantz, N Lastzka, C Lawrie, A Lazzarini, P Leaci, CH Lee, HM Lee, N Leindecker, JR Leong, I Leonor, N Leroy, N Letendre, J Li, TGF Li, N Liguori, PE Lindquist, NA Lockerbie, D Lodhia, M Lorenzini, V Loriette, M Lormand, G Losurdo, J Luan, M Lubinski, H Lück, AP Lundgren, E Macdonald, B Machenschalk, M MacInnis, DM Macleod, M Mageswaran, K Mailand, E Majorana, I Maksimovic, N Man, I Mandel, V Mandic, M Mantovani, A Marandi, F Marchesoni, F Marion, S Márka, Z Márka, A Markosyan, E Maros, J Marque, F Martelli, IW Martin, RM Martin, JN Marx, K Mason, A Masserot, F Matichard, L Matone, RA Matzner, N Mavalvala, G Mazzolo, R McCarthy, DE McClelland, P McDaniel, SC McGuire, G McIntyre, DJA McKechan, GD Meadors, M Mehmet, T Meier, A Melatos, AC Melissinos, G Mendell, D Menendez, RA Mercer, L Merill, S Meshkov, C Messenger, MS Meyer, H Miao, C Michel, L Milano, J Miller, Y Minenkov, VP Mitrofanov, G Mitselmakher, R Mittleman, O Miyakawa, B Moe, P Moesta, M Mohan, SD Mohanty, SRP Mohapatra, D Moraru, G Moreno, N Morgado, A Morgia, T Mori, S Mosca, K Mossavi, B Mours, CM Mow--Lowry, CL Mueller, G Mueller, S Mukherjee, A Mullavey, H Müller-Ebhardt, J Munch, PG Murray, A Mytidis, T Nash, L Naticchioni, R Nawrodt, V Necula, J Nelson, G Newton, E Nishida, A Nishizawa, F Nocera, D Nolting, L Nuttall, E Ochsner, J O'Dell, E Oelker, GH Ogin, JJ Oh, SH Oh, RG Oldenburg, B O'Reilly, R O'Shaughnessy, C Osthelder, CD Ott, DJ Ottaway, RS Ottens, H Overmier, BJ Owen, A Page, G Pagliaroli, L Palladino, C Palomba, Y Pan, C Pankow, F Paoletti, MA Papa, M Parisi, A Pasqualetti, R Passaquieti, D Passuello, P Patel, D Pathak, M Pedraza, P Peiris, L Pekowsky, S Penn, C Peralta, A Perreca, G Persichetti, M Phelps, M Pickenpack, F Piergiovanni, M Pietka, L Pinard, IM Pinto, M Pitkin, HJ Pletsch, MV Plissi, R Poggiani, J Pöld, F Postiglione, M Prato, V Predoi, LR Price, M Prijatelj, M Principe, S Privitera, R Prix, GA Prodi, L Prokhorov, O Puncken, M Punturo, P Puppo, V Quetschke, FJ Raab, DS Rabeling, I Rácz, H Radkins, P Raffai, M Rakhmanov, CR Ramet, B Rankins, P Rapagnani, S Rapoport, V Raymond, V Re, K Redwine, CM Reed, T Reed, T Regimbau, S Reid, DH Reitze, F Ricci, R Riesen, K Riles, NA Robertson, F Robinet, C Robinson, EL Robinson, A Rocchi, S Roddy, C Rodriguez, M Rodruck, L Rolland, J Rollins, JD Romano, R Romano, JH Romie, D Rosińska, C Röver, S Rowan, A Rüdiger, P Ruggi, K Ryan, H Ryll, P Sainathan, M Sakosky, F Salemi, L Sammut, L Sancho de la Jordana, V Sandberg, S Sankar, V Sannibale, L Santamaría, I Santiago-Prieto, G Santostasi, B Sassolas, BS Sathyaprakash, S Sato, M Satterthwaite, PR Saulson, RL Savage, R Schilling, S Schlamminger, R Schnabel, RMS Schofield, B Schulz, BF Schutz, P Schwinberg, J Scott, SM Scott, AC Searle, F Seifert, D Sellers, AS Sengupta, D Sentenac, A Sergeev, DA Shaddock, M Shaltev, B Shapiro, P Shawhan, DH Shoemaker, A Sibley, X Siemens, D Sigg, A Singer, L Singer, AM Sintes, G Skelton, BJJ Slagmolen, J Slutsky, JR Smith, MR Smith, ND Smith, RJE Smith, K Somiya, B Sorazu, J Soto, FC Speirits, L Sperandio, M Stefszky, AJ Stein, E Steinert, J Steinlechner, S Steinlechner, S Steplewski, A Stochino, R Stone, KA Strain, S Strigin, AS Stroeer, R Sturani, AL Stuver, TZ Summerscales, M Sung, S Susmithan, PJ Sutton, B Swinkels, M Tacca, L Taffarello, D Talukder, DB Tanner, SP Tarabrin, JR Taylor, R Taylor, P Thomas, KA Thorne, KS Thorne, E Thrane, A Thüring, C Titsler, KV Tokmakov, A Toncelli, M Tonelli, O Torre, C Torres, CI Torrie, E Tournefier, F Travasso, G Traylor, M Trias, K Tseng, L Turner, D Ugolini, K Urbanek, H Vahlbruch, G Vajente, M Vallisneri, JFJ van den Brand, C Van Den Broeck, S van der Putten, AA van Veggel, S Vass, M Vasuth, R Vaulin, M Vavoulidis, A Vecchio, G Vedovato, J Veitch, PJ Veitch, C Veltkamp, D Verkindt, F Vetrano, A Viceré, AE Villar, J-Y Vinet, S Vitale, S Vitale, H Vocca, C Vorvick, SP Vyatchanin, A Wade, SJ Waldman, L Wallace, Y Wan, X Wang, Z Wang, A Wanner, RL Ward, M Was, P Wei, M Weinert, AJ We, R Weiss, L Wen, S Wen, P Wessels, M West, T Westphal, K Wette, JT Whelan, SE Whitcomb, D White, BF Whiting, C Wilkinson, PA Willems, HR Williams, L Williams, B Willke, L Winkelmann, W Winkler, CC Wipf, AG Wiseman, H Wittel, G Woan, R Wooley, J Worden, J Yablon, I Yakushin, H Yamamoto, K Yamamoto, H Yang, D Yeaton-Massey, S Yoshida, P Yu, M Yvert, A Zadroźny, M Zanolin, J-P Zendri, F Zhang, L Zhang, W Zhang, Z Zhang, C Zhao, N Zotov, ME Zucker, J Zweizig, C Akerlof, M Boer, R Fender, N Gehrels, A Klotz, EO Ofek, M Smith, M Sokolowski, BW Stappers, I Steele, J Swinbank, RAMJ Wijers, W Zheng

Modeling of the HERMES submillimeter source lensed by a dark matter dominated foreground group of galaxies

Astrophysical Journal 738:2 (2011)

Authors:

R Gavazzi, A Cooray, A Conley, JE Aguirre, A Amblard, R Auld, A Beelen, A Blain, R Blundell, J Bock, CM Bradford, C Bridge, D Brisbin, D Burgarella, P Chanial, E Chapin, N Christopher, DL Clements, P Cox, SG Djorgovski, CD Dowell, S Eales, L Earle, TP Ellsworth-Bowers, D Farrah, A Franceschini, H Fu, J Glenn, EA González Solares, M Griffin, MA Gurwell, M Halpern, E Ibar, RJ Ivison, M Jarvis, J Kamenetzky, S Kim, M Krips, L Levenson, R Lupu, A Mahabal, PD Maloney, C Maraston, L Marchetti, G Marsden, H Matsuhara, AMJ Mortier, E Murphy, BJ Naylor, R Neri, HT Nguyen, SJ Oliver, A Omont, MJ Page, A Papageorgiou, CP Pearson, I Pérez-Fournon, M Pohlen, N Rangwala, JI Rawlings, G Raymond, D Riechers, G Rodighiero, IG Roseboom, M Rowan-Robinson, B Schulz, D Scott, KS Scott, P Serra, N Seymour, DL Shupe, AJ Smith, M Symeonidis, KE Tugwell, M Vaccari, E Valiante, I Valtchanov, A Verma, JD Vieira, L Vigroux, L Wang, J Wardlow, D Wiebe, G Wright, CK Xu, G Zeimann, M Zemcov, J Zmuidzinas

Abstract:

We present the results of a gravitational lensing analysis of the bright z s = 2.957 submillimeter galaxy (SMG) HERMES found in the Herschel/SPIRE science demonstration phase data from the Herschel Multi-tiered Extragalactic Survey (HerMES) project. The high-resolution imaging available in optical and near-IR channels, along with CO emission obtained with the Plateau de Bure Interferometer, allows us to precisely estimate the intrinsic source extension and hence estimate the total lensing magnification to be μ = 10.9 ± 0.7. We measure the half-light radius R eff of the source in the rest-frame near-UV and V bands that characterize the unobscured light coming from stars and find R eff, * = [2.0 ± 0.1] kpc, in good agreement with recent studies on the SMG population. This lens model is also used to estimate the size of the gas distribution (Reff, gas = [1.1 ± 0.5] kpc) by mapping back in the source plane the CO (J = 5 → 4) transition line emission. The lens modeling yields a relatively large Einstein radius R Ein = 4.″10 ± 0″.02, corresponding to a deflector velocity dispersion of [483 ± 16] km s -1. This shows that HERMES is lensed by a galaxy group-size dark matter halo at redshift z l ∼ 0.6. The projected dark matter contribution largely dominates the mass budget within the Einstein radius with f dm(< R Ein) ∼ 80%. This fraction reduces to f dm(< R eff, G1 ≃ 4.5 kpc) ∼ 47% within the effective radius of the main deflecting galaxy of stellar mass M *, G1 = [8.5 ± 1.6] × 1011 M ⊙. At this smaller scale the dark matter fraction is consistent with results already found for massive lensing ellipticals at z ∼ 0.2 from the Sloan Lens ACS Survey. © 2011. The American Astronomical Society. All rights reserved.