Results 21 to 30 of about 40,021 (212)
The NANOGrav 12.5 yr Data Set: Observations and Narrowband Timing of 47 Millisecond Pulsars
Astrophysical Journal Supplement Series, 2020 We present time-of-arrival (TOA) measurements and timing models of 47 millisecond pulsars observed from 2004 to 2017 at the Arecibo Observatory and the Green Bank Telescope by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav ...Md F. Alam, Z. Arzoumanian, P. Baker, Harsha Blumer, Keith E. Bohler, A. Brazier, P. Brook, S. Burke-Spolaor, K. Caballero, R. Camuccio, Rachel L. Chamberlain, S. Chatterjee, J. Cordes, N. Cornish, F. Crawford, H. Cromartie, M. DeCesar, P. Demorest, T. Dolch, J. Ellis, R. Ferdman, E. Ferrara, W. Fiore, E. Fonseca, Yhamil Garcia, N. Garver-Daniels, P. Gentile, D. Good, Jordan A. Gusdorff, Daniel Halmrast, J. Hazboun, K. Islo, R. Jennings, Cody Jessup, Megan L. Jones, A. Kaiser, D. Kaplan, L. Kelley, J. Key, M. Lam, T. Joseph W. Lazio, D. Lorimer, Jing Luo, R. Lynch, D. Madison, Kaleb Maraccini, M. Mclaughlin, C. Mingarelli, C. Ng, Benjamin M. X. Nguyen, D. Nice, T. Pennucci, N. Pol, Joshua Ramette, S. Ransom, P. Ray, B. Shapiro-Albert, X. Siemens, J. Simon, R. Spiewak, I. Stairs, D. Stinebring, K. Stovall, J. Swiggum, S. Taylor, M. Tripepi, M. Vallisneri, S. Vigeland, C. Witt, Weiwei Zhu +69 moresemanticscholar +1 more sourceMicroarcsecond VLBI Pulsar Astrometry with PSRπ II. Parallax Distances for 57 Pulsars [PDF]
Astrophysical Journal, 2018 We present the results of PSRπ, a large astrometric project targeting radio pulsars using the Very Long Baseline Array (VLBA). From our astrometric database of 60 pulsars, we have obtained parallax-based distance measurements for all but 3, with a ...A. Deller, W. Goss, W. Brisken, S. Chatterjee, J. Cordes, G. Janssen, Y. Y. Kovalev, T. Lazio, L. Petrov, B. Stappers, A. Lyne +10 moresemanticscholar +1 more sourceTiming of young radio pulsars – I. Timing noise, periodic modulation, and proper motion [PDF]
Monthly notices of the Royal Astronomical Society, 2019
The smooth spin-down of young pulsars is perturbed by two non-deterministic phenomenon, glitches, and timing noise. Although the timing noise provides insights into nuclear and plasma physics at extreme densities, it acts as a barrier to high-precision A. Parthasarathy, A. Parthasarathy, R. Shannon, S. Johnston, L. Lentati, M. Bailes, S. Dai, M. Kerr, R. Manchester, S. Osłowski, C. Sobey, W. Straten, P. Weltevrede +12 moresemanticscholar +1 more sourceTHE NANOGRAV NINE-YEAR DATA SET: MASS AND GEOMETRIC MEASUREMENTS OF BINARY MILLISECOND PULSARS [PDF]
, 2016 We analyze 24 binary radio pulsars in the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) nine-year data set. We make 14 significant measurements of the Shapiro delay, including new detections in four pulsar-binary systems (PSRs ...E. Fonseca, T. Pennucci, J. Ellis, I. Stairs, D. Nice, S. Ransom, P. Demorest, Z. Arzoumanian, K. Crowter, T. Dolch, R. Ferdman, M. Gonzalez, G. Jones, Megan L. Jones, M. Lam, L. Levin, M. Mclaughlin, K. Stovall, J. Swiggum, Weiwei Zhu +19 moresemanticscholar +1 more sourceSpectral properties of 441 radio pulsars [PDF]
, 2017 We present a study of the spectral properties of 441 pulsars observed with the Parkes radio telescope near the centre frequencies of 728, 1382 and 3100 MHz.F. Jankowski, F. Jankowski, W. Straten, W. Straten, W. Straten, E. Keane, E. Keane, M. Bailes, M. Bailes, E. Barr, E. Barr, S. Johnston, M. Kerr +12 moresemanticscholar +1 more sourcePulsars [PDF]
Physics Today, 1968 THE DISCOVERY OF PULSARS, or rapidly pulsating radio sources, was, like certain other historic events in astronomy, an accident. It is reminiscent of the unexpected detection of radio bursts from Jupiter by Bernard F. Burke and Kenneth L. Franklin, who were studying the Crab Nebula, and of the discovery of the cosmic fireball radiation by Arno A ...Stephen P. Maran, A. G. W. Cameron +4 more sourcesFirst search for gravitational waves from known pulsars with Advanced LIGO [PDF]
, 2017 We present the result of searches for gravitational waves from 200 pulsars using data from the first observing run of the Advanced LIGO detectors. We find no significant evidence for a gravitational-wave signal from any of these pulsars, but we are able ...The Ligo Scientific Collaboration, T. Abbott, R. Abbott, T. Abbott, M. Abernathy, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso, R. Adhikari, V. Adya, C. Affeldt, M. Agathos, K. Agatsuma, N. Aggarwal, O. Aguiar, L. Aiello, A. Ain, P. Ajith, B. Allen, A. Allocca, P. Altin, A. Ananyeva, S. Anderson, W. Anderson, S. Appert, K. Arai, M. Araya, J. Areeda, N. Arnaud, K. Arun, S. Ascenzi, G. Ashton, M. Ast, S. Aston, P. Astone, P. Aufmuth, C. Aulbert, A. Ávila-Álvarez, S. Babak, P. Bacon, M. Bader, P. Baker, F. Baldaccini, G. Ballardin, S. Ballmer, J. Barayoga, S. Barclay, B. Barish, D. Barker, F. Barone, B. Barr, L. Barsotti, M. Barsuglia, D. Barta, J. Bartlett, I. Bartos, R. Bassiri, A. Basti, J. Batch, C. Baune, V. Bavigadda, M. Bazzan, C. Beer, M. Bejger, I. Belahcene, M. Belgin, A. Bell, B. Berger, G. Bergmann, C. Berry, D. Bersanetti, A. Bertolini, J. Betzwieser, S. Bhagwat, R. Bhandare, I. Bilenko, G. Billingsley, C. Billman, J. Birch, R. Birney, O. Birnholtz, S. Biscans, A. Bisht, M. Bitossi, C. Biwer, M. Bizouard, J. Blackburn, J. Blackman, C. Blair, D. Blair, R. Blair, S. Bloemen, O. Bock, M. Boer, G. Bogaert, A. Bohé, F. Bondu, R. Bonnand, B. Boom, R. Bork, V. Boschi, S. Bose, Y. Bouffanais, A. Bozzi, C. Bradaschia, P. Brady, V. Braginsky, M. Branchesi, J. Brau, T. Briant, A. Brillet, M. Brinkmann, V. Brisson, P. Brockill, J. Broida, A. Brooks, D. Brown, D. Brown, N. Brown, S. Brunett, C. Buchanan, A. Buikema, T. Bulik, H. Bulten, A. Buonanno, D. Buskulic, C. Buy, R. Byer, M. Cabero, L. Cadonati, G. Cagnoli, C. Cahillane, J. C. Bustillo, T. Callister, E. Calloni, J. Camp, M. Canepa, K. Cannon, H. Cao, J. Cao, C. Capano, E. Capocasa, F. Carbognani, S. Caride, J. Diaz, C. Casentini, S. Caudill, M. Cavaglià, F. Cavalier, R. Cavalieri, G. Cella, C. Cepeda, L. Baiardi, G. Cerretani, E. Cesarini, S. Chamberlin, M. Chan, S. Chao, P. Charlton, É. Chassande-Mottin, B. Cheeseboro, H. Chen, Y. Chen, H.-P. Cheng, A. Chincarini, A. Chiummo, T. Chmiel, H. Cho, M. Cho, J. Chow, N. Christensen, Q. Chu, A. J. Chua, S. Chua, S. Chung, G. Ciani, F. Clara, J. Clark, F. Cleva, C. Cocchieri, E. Coccia, P. Cohadon, A. Colla, C. Collette, L. Cominsky, M. Constancio, L. Conti, S. Cooper, T. Corbitt, N. Cornish, A. Corsi, S. Cortese, C. Costa, M. Coughlin, S. Coughlin, J. Coulon, S. Countryman, P. Couvares, P. Covas, E. Cowan, D. Coward, M. Cowart, D. Coyne, R. Coyne, J. Creighton, T. Creighton, J. Cripe, S. Crowder, T. Cullen, A. Cumming, L. Cunningham, E. Cuoco, T. D. Canton, S. Danilishin, S. D’Antonio, K. Danzmann, A. Dasgupta, C. F. S. Costa, V. Dattilo, I. Dave, M. Davier, G. Davies, D. Davis, E. Daw, B. Day, R. Day, S. De, D. DeBra, G. Debreczeni, J. Degallaix, M. D. Laurentis, S. Del'eglise, W. D. Pozzo, T. Denker, T. Dent, V. Dergachev, R. Rosa, R. Derosa, R. DeSalvo, R. Devine, S. Dhurandhar, M. D'iaz, L. Fiore, M. Giovanni, T. D. Girolamo, A. Lieto, S. D. Pace, I. Palma, A. Virgilio, Zoheyr Doctor, V. Dolique, F. Donovan, K. Dooley, S. Doravari, I. Dorrington, R. Douglas, M. D. Álvarez, T. Downes, M. Drago, R. Drever, J. Driggers, Z. Du, M. Ducrot, S. Dwyer, T. Edo, M. Edwards, A. Effler, H. Eggenstein, P. Ehrens, J. Eichholz, S. Eikenberry, R. Eisenstein, R. Essick, Z. Etienne, T. Etzel, M. Evans, T. Evans, R. Everett, M. Factourovich, V. Fafone, H. Fair, S. Fairhurst, X. Fan, S. Farinon, B. Farr, W. Farr, E. Fauchon-Jones, Marc Favata, M. Fays, H. Fehrmann, M. Fejer, A. F. Galiana, I. Ferrante, E. Ferreira, F. Ferrini, F. Fidecaro, I. Fiori, D. Fiorucci, R. Fisher, R. Flaminio, M. Fletcher, H. Fong, S. Forsyth, J. Fournier, S. Frasca, F. Frasconi, Z. Frei, A. Freise, R. Frey, V. Frey, E. Fries, P. Fritschel, V. Frolov, P. Fulda, M. Fyffe, H. Gabbard, B. Gadre, S. Gaebel, J. Gair, L. Gammaitoni, S. Gaonkar, F. Garufi, G. Gaur, V. Gayathri, N. Gehrels, G. Gemme, E. Génin, A. Gennai, J. George, L. Gergely, V. Germain, S. Ghonge, A. Ghosh, A. Ghosh, S. Ghosh, J. Giaime, K. Giardina, A. Giazotto, K. Gill, A. Glaefke, E. Goetz, R. Goetz, L. Gondán, G. Gonz'alez, J. Castro, A. Gopakumar, M. Gorodetsky, S. Gossan, M. Gosselin, R. Gouaty, A. Grado, C. Graef, M. Granata, A. Grant, S. Gras, C. Gray, G. Greco, A. Green, P. Groot, H. Grote, S. Grunewald, G. Guidi, X. Guo, A. Gupta, M. Gupta, K. Gushwa, E. Gustafson, R. Gustafson, J. Hacker, B. Hall, E. Hall, G. Hammond, M. Haney, M. Hanke, J. Hanks, C. Hanna, J. Hanson, T. Hardwick, J. Harms, G. Harry, I. Harry, M. Hart, M. Hartman, C. Haster, K. Haughian, J. Healy, A. Heidmann, M. Heintze, H. Heitmann, P. Hello, G. Hemming, M. Hendry, I. Heng, J. Hennig, J. Henry, A. Heptonstall, M. Heurs, S. Hild, D. Hoak, D. Hofman, K. Holt, D. Holz, P. Hopkins, J. Hough, E. Houston, E. Howell, Y. Hu, E. Huerta, D. Huet, B. Hughey, S. Husa, S. Huttner, T. Huynh--Dinh, N. Indik, D. Ingram, R. Inta, H. N. Isa, J. Isac, M. Isi, T. Isogai, B. Iyer, K. Izumi, T. Jacqmin, K. Jani, P. Jaranowski, S. Jawahar, F. Jim'enez-Forteza, W. Johnson, D. Jones, R. Jones, R. Jonker, L. Ju, J. Junker, C. Kalaghatgi, V. Kalogera, S. Kandhasamy, G. Kang, J. Kanner, S. Karki, K. Karvinen, M. Kasprzack, E. Katsavounidis, W. Katzman, S. Kaufer, T. Kaur, K. Kawabe, F. K'ef'elian, D. Keitel, D. Kelley, R. Kennedy, J. Key, F. Khalili, I. Khan, S. Khan, Z. Khan, E. Khazanov, N. Kijbunchoo, Chunglee Kim, J. Kim, Whansun Kim, W. Kim, Y.-M. Kim, S. Kimbrell, E. King, P. King, R. Kirchhoff, J. Kissel, B. Klein, L. Kleybolte, S. Klimenko, P. Koch, S. Koehlenbeck, S. Koley, V. Kondrashov, A. Kontos, M. Korobko, W. Korth, I. Kowalska, D. Kozak, C. Kramer, V. Kringel, B. Krishnan, A. Kr'olak, G. Kuehn, P. Kumar, R. Kumar, L. Kuo, A. Kutynia, B. Lackey, M. Landry, R. Lang, J. Lange, B. Lantz, R. Lanza, A. Lartaux-Vollard, P. Lasky, M. Laxen, A. Lazzarini +499 moresemanticscholar +1 more source