Creator/Author/Editor: Alpar, M. Ali

2012

Alpar, M. Ali and Çalışkan, Şirin and Ertan, Ünal (2012) Fallback disks, magnetars and other neutron stars. In: Feeding Compact Objects: Accretion on All Scales, (Accepted/In Press)

Ertan, Ünal and Çalışkan, Şirin and Alpar, M. Ali (2012) Genç nötron yıldızı sistemlerinin yayılma diskleriyle evrimi. In: XVIII. Ulusal Astronomi ve Uzay Bilimleri Kongresi, İnönü Üniversitesi, Malatya

Alpar, M. Ali (2012) On kHz oscillations and characteristic frequencies of accreting magnetospheres. Monthly Notices of the Royal Astronomical Society, 423 (4). pp. 3768-3774. ISSN 0035-8711 (Print) 1365-2966 (Online)

Patruno, Alessandro and Alpar, M. Ali and Van der Klis, Michiel and Van den Heuvel, Ed P. J. (2012) The peculiar evolutionary history of IGR J17480-2446 in Terzan 5. The Astrophysical Journal, 752 (1). ISSN 0004-637X

Alpar, M. Ali (2012) Nötron yıldızlarında üstünakışkanlık ve üstüniletkenlik. In: Akyüz, Asuman and Dayı, Ömer Faruk and Durukanoğlu Feyiz, Sondan and Özbek, Sevtap Yıldız, (eds.) Anı Kitabı: Bilim, Kişi ve Toplum Üzerine Çalışmalar. Sabancı Üniversitesi Yayınları. Sabancı Üniversitesi, İstanbul, pp. 94-97. ISBN 9786054348213

2011

Ertan, Ünal and Çalışkan, Şirin and Ekşi, Kazım Yavuz and Erkut, Mehmet Hakan and Alpar, M. Ali (2011) A natural limit on the observable periods of anomalous x-ray pulsars and soft gamma-ray repeaters. In: Astrophysics of Neutron Stars 2010: A Conference in Honor of M. Ali Alpar, Çeşme, Izmir

Feroci, Marco and Stella, L. and Van der Klis, M. and Courvoisier, T. J.-L. and Hernanz, M. and Hudec, R. and Santangelo, A. and Walton, D. and Zdziarski, A. and Barret, D. and Belloni, T. and Braga, J. and Brandt, S. and Budtz-Jrgensen, C. and Campana, S. and Den Herder, J.-W. and Huovelin, J. and Israel, G. L. and Pohl, M. and Ray, P. and Vacchi, A. and Zane, S. and Argan, A. and Attina, P. and Bertuccio, G. and Bozzo, E. and Campana, R. and Chakrabarty, D. and Costa, E. and De Rosa, A. and Del Monte, E. and Di Cosimo, S. and Donnarumma, I. and Evangelista, Y. and Haas, D. and Jonker, P. and Korpela, S. and Labanti, C. and Malcovati, P. and Mignani, R. and Muleri, F. and Rapisarda, M. and Rashevsky, A. and Rea, N. and Rubini, A. and Tenzer, C. and Wilson-Hodge, C. and Winter, B. and Wood, K. and Zampa, G. and Zampa, N. and Abramowicz, M. A. and Alpar, M. Ali and Altamirano, D. and Alvarez, J. M. and Amati, L. and Amoros, C. and Antonelli, L. A. and Artigue, R. and Azzarello, P. and Bachetti, M. and Baldazzi, G. and Barbera, M. and Barbieri, C. and Basa, S. and Baykal, A. and Belmont, R. and Boirin, L. and Bonvicini, V. and Burderi, L. and Bursa, M. and Cabanac, C. and Cackett, E. and Caliandro, G. A. and Casella, P. and Chaty, S. and Chenevez, J. and Coe, M. J. and Collura, A. and Corongiu, A. and Covino, S. and Cusumano, G. and D'Amico, F. and Dall'Osso, S. and De Martino, D. and De Paris, G. and Di Persio, G. and Di Salvo, T. and Done, C. and Dovciak, M. and Drago, A. and Ertan, Ünal and Fabiani, S. and Falanga, M. and Fender, R. and Ferrando, P. and Della Monica Ferreira, D. and Fraser, G. and Frontera, F. and Fuschino, F. and Galvez, J. L. and Gandhi, P. and Giommi, P. and Godet, O. and Göğüş, Ersin and Goldwurm, A. and Götz, D. and Grassi, M. and Guttridge, P. and Hakala, P. and Henri, G. and Hermsen, W. and Horak, J. and Hornstrup, A. and In 't Zand, J. J. M. and Isern, J. and Kalemci, Emrah and Kanbach, G. and Karas, V. and Kataria, D. and Kennedy, T. and Klochkov, D. and Kluzniak, W. and Kokkotas, K. and Kreykenbohm, I. and Krolik, J. and Kuiper, L. and Kuvvetli, I. and Kylafis, N. and Lattimer, J. M. and Lazzarotto, F. and Leahy, D. and Lebrun, F. and Lin, D. and Lund, N. and Maccarone, T. and Malzac, J. and Marisaldi, M. and Martindale, A. and Mastropietro, M. and McClintock, J. and McHardy, I. and Mendez, M. and Mereghetti, S. and Miller, M. C. and Mineo, T. and Morelli, E. and Morsink, S. and Motch, C. and Motta, S. and Munoz Darias, T. and Naletto, G. and Neustroev, V. and Nevalainen, J. and Olive, J. F. and Orio, M. and Orlandini, M. and Orleanski, P. and Ozel, F. and Pacciani, L. and Paltani, S. and Papadakis, I. and Papitto, A. and Patruno, A. and Pellizzoni, A. and Petracek, V. and Petri, J. and Petrucci, P. O. and Phlips, B. and Picolli, L. and Possenti, A. and Psaltis, D. and Rambaud, D. and Reig, P. and Remillard, R. and Rodriguez, J. and Romano, P. and Romanova, M. and Schanz, T. and Schmid, C. and Segreto, A. and Shearer, A. and Smith, A. and Smith, P. J. and Soffitta, P. and Stergioulas, N. and Stolarski, M. and Stuchlik, Z. and Tiengo, A. and Torres, D. and Török, G. and Turolla, R. and Uttley, P. and Vaughan, S. and Vercellone, S. and Waters, R. and Watts, A. and Wawrzaszek, R. and Webb, N. and Wilms, J. and Zampieri, L. and Zezas, A. and Ziolkowski, J. (2011) The large observatory for x-ray timing (LOFT). Experimental Astronomy (Sl), 34 (2). pp. 415-444. ISSN 1572-9508

Alpar, M. Ali and Ertan, Ünal and Çalışkan, Şirin (2011) SGR 0418+5729 - How does a young neutron star spin down to a 9 s period with a dipole field less than 10(13) G? The Astrophysical Journal Letters, 732 (1). L4-L7. ISSN 0004-637X

2010

Alpar, M. Ali and Ertan, Ünal and Çalışkan, Şirin (2010) SGR 0418*5729 - How does a young neutron star spin down to a 9 s period with a dipole field less than 10^{13} G. (Submitted)

2009

Sidery, Trevor Llyod and Alpar, M. Ali (2009) The effect of quantized magnetic flux lines on the dynamics of superfluid neutron star cores. Monthly Notices of the Royal Astronomical Society, 400 (4). pp. 1859-1867. ISSN 0035-8711

Ertan, Ünal and Ekşi, Kazım Yavuz and Erkut, Mehmet Hakan and Alpar, M. Ali (2009) On the evolution of anomalous x-ray pulsars and soft gamma-ray repeaters with fall back disks. The Astrophysical Journal, 702 (2). pp. 1309-1320. ISSN 0004-637X

Erdeve, Işıl and Kalemci, Emrah and Alpar, M. Ali (2009) Hard X-Ray flux upper limits of central compact objects in supernova remnants. The Astrophysical Journal, 696 (2). pp. 1792-1797. ISSN 0004-637X

2007

Alpar, M. Ali and Psaltis, Dimitrios (2007) The Highest Dynamical Frequency in the Inner Region of an Accretion Disk. (Submitted)

Göğüş, Ersin and Alpar, M. Ali and Gilfanov, Marat (2007) Is the lack of pulsations in low mass X-Ray binaries due to comptonizing coronae? The Astrophysical journal, 659 (1). pp. 580-584. ISSN 0004-637X

Ertan, Ünal and Alpar, M. Ali and Erkut, Mehmet Hakan and Ekşi, K. Y. and Çalışkan, Ş. (2007) Anomalous X-ray pulsars: persistent states with fallback disks. Astrophysics and Space Science, 308 (1-4). pp. 73-77. ISSN 0004-640X (Print) 1572-946X (Online)

Alpar, M. Ali (2007) Dim isolated neutron stars, cooling and energy dissipation. Astrophysics and Space Science, 308 (1-4). pp. 133-136. ISSN 0004-640X (Print) 1572-946X (Online)

Ertan, Ünal and Erkut, Mehmet Hakan and Ekşi, Kazım Yavuz and Alpar, M. Ali (2007) The anomalous X-ray pulsar 4U 0142+61: a neutron star with a gaseous fallback disk. The Astrophysical Journal, 657 (1). pp. 441-447. ISSN 0004-637

2006

Alpar, M. Ali and Ertan, Ünal and Erkut, M. Hakan and Ekşi, Kazım. Yavuz and Çalışkan, Şirin (2006) On fallback disks and magnetars. In: The 36th COSPAR Scientific Assembly- on Space Research, Beijing, China (Accepted/In Press)

Alpar, M. Ali and Baykal, Altan (2006) Pulsar braking indices, glitches and energy dissipation in neutron stars. Monthly notices of the Royal Astronomical Society, 372 (1). pp. 489-496. ISSN 0035-8711

Ertan, Ünal and Erkut, M. Hakan and Ekşi, Kazım Yavuz and Alpar, M. Ali (2006) The anomalaus X-ray pulsar 4U 0142+61: a neutron star with a gaselous fallback disk. (Accepted/In Press)

Ertan, Ünal and Ekşi, Kazım Yavuz and Erkut, M. Hakan and Alpar, M. Ali (2006) The anomalous x-ray pulsar 4U 0142+61: a neutron star with a gaseous fallback disk. In: Isolated Neutron Stars from the Interior to the Surface, London, UK (Accepted/In Press)

Ertan, Ünal and Göğüş, Ersin and Alpar, M. Ali (2006) X-ray and infrared enhancement of anomalous x-ray pulsar 1E 2259+586. The Astrophysical journal, 640 (1). pp. 435-440. ISSN 0004-637X

2005

Alpar, M. Ali (2005) Neutron star superfluidity, dynamics and precession. In: 6th NATO-Advanced-Study-Institute on Electromagnetic Spectrum of Neutron Stars, Marmaris, Turkey

Ekşi, Kazım Yavuz and Alpar, M. Ali (2005) Disks surviving the radiation pressure of radio pulsars. The Astrophysical journal, 620 (1). pp. 390-397. ISSN 0004-637X

2004

Erkut, Mehmet Hakan and Alpar, M. Ali (2004) On the rotational dynamics of magnetically threaded disks around neutron stars. The Astrophysical journal, 617 (1). pp. 461-470. ISSN 0004-637X

Ertan, Ünal and Alpar, M. Ali (2004) On the enhanced X-ray emission from SGR 1900+14 after the August 27th giant flare. In: 2nd BeppoSAX Conference on Restless High-Engery Universe, Amsterdam, Netherlands

Ekşi, Kazım Yavuz and Alpar, M. Ali (2004) Thin disk models of anomalous X-ray pulsars. In: 2nd BeppoSAX Conference on Restless High-Engery Universe, Amsterdam, Netherlands

Ögelman, H. and Alpar, M. Ali (2004) Constraints on a putative pulsar in SN 1987A. The Astrophysical journal, 603 (1). L33-L35. ISSN 0004-637X

2003

Ekşi, Kazım Yavuz and Alpar, M. Ali (2003) Can thin disks produce anomalous X-ray pulsars? The Astrophysical journal, 599 (1). pp. 450-456. ISSN 0004-637X

Ertan, Ünal and Alpar, M. Ali (2003) On the enhanced X-ray emission from SGR 1900+14 after the August 27 giant flare. The Astrophysical journal, 593 (2). L93-L96. ISSN 0004-637X

2002

Ertan, Ünal and Alpar, M. Ali (2002) On the outbursts of black hole soft x-ray transients. Astronomy and Astrophysics, 393 (1). pp. 205-214. ISSN 0004-6361

2000

Baykal, Altan and Strohmayer, Tod and Swank, Jean and Alpar, M. Ali and Stark, Michael J. (2000) Differences between the two anomalous X-ray pulsars: variations in the spin-down rate of 1E 1048.1-5937 and an extended interval of quiet spin-down in 1E 2259+586. Monthly Notices of the Royal Astronomical Society, 319 (1). pp. 205-208. ISSN 0035-8711