Abstract
Multiwavelength astronomy has shown that Geminga is a particular kind of object: a radio-quiet γ-ray loud pulsar. While the enigma of why the observed radio flux of Geminga is so low persists, the discovery of over a hundred unidentified γ-ray sources by the EGRET telescope has pointed to Geminga-like pulsars as a natural explanation for these sources. Some unidentified sources display properties similar to those of Geminga and there are at least four well documented cases of objects likely to contain a radio-quiet or radio-weak pulsar. While GLAST, the prototype of the next generation of γ-ray telescopes, will be able to perform direct timing studies of these pulsars, the possibility of finding more radio-quiet pulsars in the EGRET data remains open.
Project supported by CONCAyT grant 25539-E
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bertsch, D.L., et al.,1992,Nat 357, 306
Bignami, G.F., Caraveo, P.A., & Mereghetti, S., 1993,Nat. 361, 704
Bignami, G.F., Caraveo, P.A., Lamb, R.C., 1983,ApJ 272, L9
Bloom, S.D., Hartman, R.C., Teräsranta, H., Tornikoski, M., and Valtaoja,E., 1997,ApJ 488, L23
Brazier, K.T.S., Si Johnston, S., 1999,MNRAS 305, 671
Brazier, K.T.S, Kanbach, G., Carramiñana, A., Guichard, J., Si Merck, M., 1996, MNRAS 281, 1033
Brazier, K.T.S, Reimer, O. Kanbach, G., Si Carramiñana, A., 1998,MN-RAS 295,819
Buccheri, R. Si Sacco, B. 1985,in Data Analysis in Astronomy, eds. Scarsi, Di Ges¨², Crane, Levialdi, Plenum Press. p. 15
Burderi, L., Fauci, F., Si Boriakoff, V., 1999,ApJ 512, L59
Caraveo, P.A., Bignami, G.F., Mignami, R., Taff, L.G., 1996,ApJ 461, L91
Caraveo, P.A., Bignami, G.F., Triimper, J.E., 1996,A&A Rev 7, 209
Carramiñana, A., Chavushyan, V., Zharikov, S., Reimer, O. Si Brazier,K.T.S., 2000, AIP Conf Proc 510, 495
Cheng K.S., Ho C. & Ruderman M. 1986,ApJ 300, 500
Cusumano, G., Maccarone, M.C., Nicastro, L., Sacco, B., Kaaret, P.,2000, ApJ 528, L25
Daugherty, J.K. & Harding A.J. 1982,ApJ 252, 337
de Jager, O.C., Raubenheimer, B.C, & Swanepoel, J.W.H., 1989,A&A 221, 180
Dermer C.D. & Sturner S.J. 1994, ApJ 420, L75
Gehrels, N., Macomb, D.J., Berstch, D.L., Thompson, D.J., Hartman, R.C., 2000, Nat 404, 363
Grenier, I.A., 2000,A&A 364, L93
Halpern, J.P., Holt, S.S., 1992, Nat 357, 222
Halpern, J.P. & Tytler, D., 1988, ApJ 330, 201
Halpern, J.P., Gotthelf, E.V., Leighly,K.M. & Helfand, D.J., 2001,ApJ 547, 323
Halpern, J.P., et al., 2001, ApJ 552, L125
Hartman, R.C., et al., 1999, ApJS 123, 79
Hermsen, W., et al., 1992, IAU Circ 5541
Kaaret, P., Piraino, S., Halpern, J., Eracleous, M., 1999, ApJ 523, 197 Kaaret, P., Cusumano, G., Sacco, B., 2000, ApJ 542, L41
Kanbach, G., et al. 1994, A&A 289, 855
Kaspi, V.M., Lackey, J.R., Mattox, J.R., Manchester, R.N., Nailes, M., & Pace, R., 2000, ApJ 528, 445
Kassim, N.E. & Lazio, T.J.W., 1999,ApJ 527, L101
Kuiper, L., et al. 1999, A&A 337, 421
Kuiper, L., et al., 1999, A&A 351, 119
Kuiper, L., et al., 2000, A&A 359, 615
Kuz’min, A.D. & Losovskii, B.Ya., 1997, Astron. Let. 23, 283 Kwok, Cheng, & Lau, 1991, ApJ 379, 653
Lamb, R.C., Macomb, D.J., 1997, ApJ 488, 872
Malofeev, V.M., & Malov, O.I., 1997, Nat 389, 697
Mattox, J.R., et al., 1992, ApJ 401, L23
Mattox, J.R., Koh, D.T., Lamb, R.C., Macomb, D.J., Prince, T.A., Ray, P.S., 1996, A&A Suppl Ser 120, 95
McLaughlin, M.A., Mattox, J.R., Cordes, J.M., Thompson, D.J., 1996, ApJ 473, 763
McLaughlin, M.A., Cordes, J.M., Hankins, T.H., Moffett, D.A., 1999, ApJ 512, 929
Merck, M., et al., 1996, A&AS 120, 465
Mirabal, N., Halpern, J.P., Eracleous, M., Becker, R.H., 2000, ApJ 541, 180 Mirabal, N., & Halpern, J.P., 2001, ApJ 547, L137
Mukherjee, R., et al., 1995, ApJ 441, L61
Nel, H.I., et al., 1996, ApJ 465, 898,134 UNIDENTIFIED GALACTIC GAMMA-RAY SOURCES
Nice, D.J., Sayer, R.W., 1997, ApJ 476, 261
Nolan, P.L., et al., 1993,ApJ 409, 697
Oka, T., et al., 1999, ApJ 526, 764
Page, D., & Applegate, J.H., 1992, ApJ 394, L17
Paredes, J.M., Mart¨ª, J., Rib¨®, M., & Massi, M., 2000, Science 288, 2340
Ramanamurthy, P.V, et al., 1995, ApJ 447, L109
Ramanamurthy, P.V, Fichtel, C.E., Kniffen, D.A., Sreekumar, P., Thompson, D.J., 1996, ApJ 458, 755
Reimer, O., Brazier, K.T.S, Carramiñana, A., Kanbach, G., Nolan, P.L., & Thompson, D.J. 2000, AIP Conf Proc 510, 489
Reimer, O., Brazier, K.T.S, Carramiñana, A., Kanbach, G., Nolan, P.L., & Thompson, D.J., 2001, MNRAS accepted (astro-ph/0102150) Roberts, M.S.E., &
Romani, R.W., 1998, ApJ 496, 827
Roberts, M.S.E., Romani, R.W., Johnston, S., and Green, A.J., 1999, ApJ 515, 712
Roberts, M.S.E, Romani, R.W., Kawaii, N., 2001, ApJS 133, 451 Romani, R.W. 1996, ApJ 470, 469
Romani, R.W., & Yadigaroglu, I.A., 1995, ApJ 438, 314
Ruderman, M.A., & Sutherland, P.G., 1975, ApJ 196, 51
Schönfelder, V., et al., 2000, A&A Suppl. Ser. 143, 145
Seiradakis, J.H., 1992, IAU Circ 5532
Shearer, A., et al., 1998, A&A 335, L21
Slane, P., Seward, F.D., Bandiera, R., Torii, K., Tsunemi, H., 1997, ApJ 485, 221
Shitov, Yu. P, Pugachev, V.D., 1997, New Astron 3, 101
Strickman, M.S., et al., 1998, ApJ 497, 419
Sturner, S.J., & Dermer, C.D., 1995, A&A 293, L17
Sturrock, P.A., 1971, ApJ 164, 529
Swanenburg, B.N., et al., 1981, ApJ 243, L69
Taylor, J.H., Manchester, R.N., & Lyne, A.G., 1993, ApJS 88, 529 Thompkins, W., 1999, PhD thesis, Stanford University
Thompson, D.J., Fichtel, C.E., Hartman, R.C., Kniffen, D.A., Lamb, R.C., 1977, ApJ 213, 252
Yadigaroglu, I.A., & Romani, R.W., 1995, ApJ 449, 211
Yadigaroglu, I.A., & Romani, R.W., 1997, ApJ 476, 347
Zhang, L., Cheng, K.S., 1998, A&A 335, 234
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2001 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Carramiñana, A. (2001). Geminga Pulsars. In: Carramiñana, A., Reimer, O., Thompson, D.J. (eds) The Nature of Unidentified Galactic High-Energy Gamma-Ray Sources. Astrophysics and Space Science Library, vol 267. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-1007-8_9
Download citation
DOI: https://doi.org/10.1007/978-94-010-1007-8_9
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-3875-1
Online ISBN: 978-94-010-1007-8
eBook Packages: Springer Book Archive