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Transient low-mass X-ray binary populations in elliptical galaxies NGC3379 and NGC4278

Astrophysical Journal 702:2 PART 2 (2009)

Authors:

T Fragos, V Kalogera, B Willems, K Belczynski, G Fabbiano, NJ Brassington, DW Kim, L Angelini, RL Davies, JS Gallagher, AR King, S Pellegrini, G Trinchieri, SE Zepf, A Zezas

Abstract:

We propose a physically motivated and self-consistent prescription for the modeling of transient neutron star low-mass X-ray binary (LMXB) properties, such as duty cycle (DC), outburst duration, and recurrence time. We apply this prescription to the population synthesis models of field LMXBs presented by Fragos etal., and compare the transient LMXB population to the Chandra X-ray survey of the two elliptical galaxies NGC3379 and NGC4278, which revealed several transient sources. We are able to exclude models with a constant DC for all transient systems, while models with a variable DC based on the properties of each system are consistent with the observed transient populations. We predict that the majority of the observed transient sources in these two galaxies are LMXBs with red giant donors. Finally, our comparison suggests that transient LMXBs are very rare in globular clusters (GCs), and thus the number of identified transient LMXBs may be used as a tracer of the relative contribution of field and GC LMXB populations. © 2009. The American Astronomical Society.
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J/ψ and ψ(2S) Radiative Transitions to ηc

PHYSICAL REVIEW LETTERS 102:1 (2009) ARTN 011801

Authors:

RE Mitchell, MR Shepherd, D Besson, TK Pedlar, D Cronin-Hennessy, KY Gao, J Hietala, Y Kubota, T Klein, BW Lang, R Poling, AW Scott, P Zweber, S Dobbs, Z Metreveli, KK Seth, A Tomaradze, J Libby, A Powell, G Wilkinson, KM Ecklund, W Love, V Savinov, A Lopez, H Mendez, J Ramirez, JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, M Anderson, JP Cummings, I Danko, D Hu, B Moziak, J Napolitano, Q He, J Insler, H Muramatsu, CS Park, EH Thorndike, F Yang, M Artuso, S Blusk, S Khalil, J Li, R Mountain, S Nisar, K Randrianarivony, N Sultana, T Skwarnicki, S Stone, JC Wang, LM Zhang, G Bonvicini, D Cinabro, M Dubrovin, A Lincoln, P Naik, J Rademacker, DM Asner, KW Edwards, J Reed, RA Briere, T Ferguson, G Tatishvili, H Vogel, ME Watkins, JL Rosner, JP Alexander, DG Cassel, JE Duboscq, R Ehrlich, L Fields, RS Galik, L Gibbons, R Gray, SW Gray, DL Hartill, BK Heltsley, D Hertz, JM Hunt, J Kandaswamy, DL Kreinick, VE Kuznetsov, J Ledoux, H Mahlke-Krueger, D Mohapatra, PUE Onyisi, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, S Stroiney, WM Sun, T Wilksen, SB Athar, R Patel, J Yelton, P Rubin, BI Eisenstein, I Karliner, S Mehrabyan, N Lowrey, M Selen, EJ White, J Wiss
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SPACE: the spectroscopic all-sky cosmic explorer

EXPERIMENTAL ASTRONOMY 23:1 (2009) 39-66

Authors:

A Cimatti, M Robberto, C Baugh, SVW Beckwith, R Content, E Daddi, G De Lucia, B Garilli, L Guzzo, G Kauffmann, M Lehnert, D Maccagni, A Martinez-Sansigre, F Pasian, IN Reid, P Rosati, R Salvaterra, M Stiavelli, Y Wang, M Zapatero Osorio, M Balcells, M Bersanelli, F Bertoldi, J Blaizot, D Bottini, R Bower, A Bulgarelli, A Burgasser, C Burigana, RC Butler, S Casertano, B Ciardi, M Cirasuolo, M Clampin, S Cole, A Comastri, S Cristiani, J-G Cuby, F Cuttaia, A De Rosa, A Diaz Sanchez, M Di Capua, J Dunlop, X Fan, A Ferrara, F Finelli, A Franceschini, M Franx, P Franzetti, C Frenk, Jonathan P Gardner, F Gianotti, R Grange, C Gruppioni, A Gruppuso, F Hammer, L Hillenbrand, A Jacobsen, M Jarvis, R Kennicutt, R Kimble, M Kriek, J Kurk, J-P Kneib, O Le Fevre, D Macchetto, J MacKenty, P Madau, M Magliocchetti, D Maino, N Mandolesi, N Masetti, R McLure, A Mennella, M Meyer, M Mignoli, B Mobasher, E Molinari, G Morgante, S Morris, L Nicastro, E Oliva, P Padovani, E Palazzi, F Paresce, A Perez Garrido, E Pian, L Popa, M Postman, L Pozzetti, J Rayner, R Rebolo, A Renzini, H Rottgering, E Schinnerer, M Scodeggio, M Saisse, T Shanks, A Shapley, R Sharples, H Shea, J Silk, I Smail, P Spano, J Steinacker, L Stringhetti, A Szalay, L Tresse, M Trifoglio, M Urry, L Valenziano, F Villa, I Villo Perez, F Walter, M Ward, R White, S White, E Wright, R Wyse, G Zamorani, A Zacchei, WW Zeilinger, F Zerbi
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Charmonium decays to γπ0, γη, and γη′

PHYSICAL REVIEW D 79:11 (2009) ARTN 111101

Authors:

TK Pedlar, J Xavier, D Cronin-Hennessy, KY Gao, J Hietala, T Klein, R Poling, P Zweber, S Dobbs, Z Metreveli, KK Seth, BJY Tan, A Tomaradze, J Libby, L Martin, A Powell, C Thomas, G Wilkinson, H Mendez, JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, D Hu, B Moziak, J Napolitano, KM Ecklund, Q He, J Insler, H Muramatsu, CS Park, EH Thorndike, F Yang, M Artuso, S Blusk, S Khalil, R Mountain, K Randrianarivony, T Skwarnicki, S Stone, JC Wang, LM Zhang, G Bonvicini, D Cinabro, M Dubrovin, A Lincoln, MJ Smith, P Zhou, J Zhu, P Naik, J Rademacker, DM Asner, KW Edwards, J Reed, AN Robichaud, G Tatishvili, EJ White, RA Briere, H Vogel, PUE Onyisi, JL Rosner, JP Alexander, DG Cassel, R Ehrlich, L Fields, RS Galik, L Gibbons, R Gray, SW Gray, DL Hartill, BK Heltsley, D Hertz, JM Hunt, J Kandaswamy, DL Kreinick, VE Kuznetsov, J Ledoux, H Mahlke-Krueger, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, S Stroiney, WM Sun, T Wilksen, J Yelton, P Rubin, N Lowrey, S Mehrabyan, M Selen, J Wiss, M Kornicer, RE Mitchell, MR Shepherd, C Tarbert, D Besson
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Ds+ exclusive hadronic decays involving ω

PHYSICAL REVIEW D 80:5 (2009) ARTN 051102

Authors:

JY Ge, DH Miller, IPJ Shipsey, B Xin, GS Adams, D Hu, B Moziak, J Napolitano, KM Ecklund, Q He, J Insler, H Muramatsu, CS Park, EH Thorndike, F Yang, M Artuso, S Blusk, S Khalil, R Mountain, K Randrianarivony, T Skwarnicki, S Stone, JC Wang, LM Zhang, G Bonvicini, D Cinabro, A Lincoln, MJ Smith, P Zhou, J Zhu, P Naik, J Rademacker, DM Asner, KW Edwards, J Reed, AN Robichaud, G Tatishvili, EJ White, RA Briere, H Vogel, PUE Onyisi, JL Rosner, JP Alexander, DG Cassel, R Ehrlich, L Fields, L Gibbons, SW Gray, DL Hartill, BK Heltsley, JM Hunt, J Kandaswamy, DL Kreinick, VE Kuznetsov, J Ledoux, H Mahlke-Krueger, JR Patterson, D Peterson, D Riley, A Ryd, AJ Sadoff, X Shi, S Stroiney, WM Sun, T Wilksen, J Yelton, P Rubin, N Lowrey, S Mehrabyan, M Selen, J Wiss, M Kornicer, RE Mitchell, MR Shepherd, CM Tarbert, D Besson, TK Pedlar, J Xavier, D Cronin-Hennessy, KY Gao, J Hietala, T Klein, R Poling, P Zweber, S Dobbs, Z Metreveli, KK Seth, BJY Tan, A Tomaradze, S Brisbane, J Libby, L Martin, A Powell, C Thomas, G Wilkinson, H Mendez
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