The last GW Note is by Nicolás Yunes

Archive for the ‘observations’ Category

The Underluminous Nature of Sgr A*

Tuesday, March 9th, 2010

arXiv:1003.1519

by Yusef-Zadeh, F. and Wardle, M.
4 pages, To appear in Proceedings of “X-ray Astronomy 2009: Present Status, Multi-Wavelength Approach and Future Perspectives”, Bologna, Italy, September 7-11, 2009, AIP, eds. A. Comastri, M. Cappi, and L. Angelini

more …

The NGC 404 Nucleus: Star Cluster and Possible Intermediate Mass Black Hole

Thursday, March 4th, 2010

arXiv:1003.0680

by Seth, Anil C. and Cappellari, Michele and Neumayer, Nadine and Caldwell, Nelson and Bastian, Nate and Olsen, Knut and Blum, Robert D. and Debattista, Victor P. and McDermid, Richard and Puzia, Thomas and Stephens, Andrew
To appear in ApJ. 21 pages, 19 figures, higher resolution PDF available at: http://www.cfa.harvard.edu/~aseth/ngc404paper.pdf

more …

A mass estimate of an intermediate-mass black hole in omega Centauri

Monday, March 1st, 2010

arXiv:1002.5037

by Miocchi, P.
LateX, 5 pages, 5 figures. Accepted for publication by Astronomy & Astrophysics

more …

Chandra and Swift Follow-up Observations of the Intermediate Mass Black Hole in ESO243-49

Monday, February 22nd, 2010

arXiv:1002.3625

by Webb, N. A. and Barret, D. and Godet, O. and Servillat, M. and Farrell, S. A. and Oates, S. R.
10 pages, 3 figures, accepted for publication in ApJL on 12/02/2010

more …

Further Observations of the Intermediate Mass Black Hole Candidate ESO 243-49 HLX-1

Friday, February 19th, 2010

arXiv:1002.3404

by Farrell, S. A. and Servillat, M. and Oates, S. R. and Heywood, I. and Godet, O. and Webb, N. A. and Barret, D.
4 pages, 2 figures. Accepted 11th of Feb 2010. Contributed talk to appear in Proceedings of “X-ray Astronomy 2009: Present Status, Multi-Wavelength Approach and Future Perspectives”, Bologna, Italy, September 7-11, 2009, AIP, eds. A. Comastri, M. Cappi, and L. Angelini

more …

Flares from Sgr A* and their emission mechanism

Tuesday, February 16th, 2010

arXiv:1002.2885

by Dodds-Eden, K. and Porquet, D. and Trap, G. and Quataert, E. and Gillessen, S. and Grosso, N. and Genzel, R. and Goldwurm, A. and Yusef-Zadeh, F. and Trippe, S. and Bartko, H. and Eisenhauer, F. and Ott, T. and Fritz, T. K. and Pfuhl, O.
Proceedings of the Galactic Center Workshop 2009, Shanghai

more …

HST Palpha Survey of the Galactic Center — Searching the missing young stellar populations within the Galactic Center

Monday, February 15th, 2010

arXiv:1002.2611

by Dong, H. and Wang, Q. D. and Cotera, A. and Stolovy, S. and Morris, M. R. and Mauerhan, J. and Mills, E. A. and Schneider, G. and Lang, C.
10 pages, 6 figures, Proceedings of the Galactic Center Workshop 2009, Shanghai

more …

The M-Sigma Relation Derived from Sphere of Influence Arguments

Thursday, February 11th, 2010

arXiv:1002.1705

by Batcheldor, D.
ApJ Letters, accepted

more …

The SMBH mass versus M_G sigma^2 relation: A comparison between real data and numerical models

Thursday, February 11th, 2010

arXiv:1002.1703

by Feoli, A. and Mancini, L. and Marulli, F. and Bergh, S. van den
16 pages, 5 figures, to be published in a special issue of General Relativity and Gravitation

more …

Numerical Models of Sgr A*

Monday, February 8th, 2010

arXiv:1002.1261

by Moscibrodzka, M. and Gammie, C. F. and Dolence, J. and Shiokawa, H. and Leung, P. K.
To appear in “The Galactic Center: A Window on the Nuclear Environment of Disk Galaxies”, ed. Mark Morris, Daniel Q. Wang and Feng Yuan

more …

The Supermassive Black Hole at the Heart of Centaurus A: Revealed by Gas- and Stellar Kinematics

Friday, February 5th, 2010

arXiv:1002.0965

by Neumayer, Nadine
8 pages, accepted for publication in PASA, contribution for “The Many Faces of Centaurus A” conference in Sydney, 2009

more …

Stellar disc — dynamical evolution in a perturbed potential

Thursday, February 4th, 2010

arXiv:1002.0718

by Subr, Ladislav
“The Galactic Center: A Window on the Nuclear Environment of Disk Galaxies”, ed. Mark Morris, Daniel Q. Wang and Feng Yuan

more …

Dynamical Models of the Galactic Center

Monday, February 1st, 2010

arXiv:1001.5435

by Merritt, David
To appear in “The Galactic Center: A Window on the Nuclear Environment of Disk Galaxies”, ed. Mark Morris, Daniel Q. Wang and Feng Yuan

more …

Composition of the galactic center star cluster

Monday, February 1st, 2010

arXiv:1001.5381

by Buchholz, R. M. and Schoedel, R. and Eckart, A.
Proceedings article for the Galactic Center Workshop 2009, Shanghai. The conference proceedings will be published in the Astronomical Society of the Pacific Conference Series

more …

The Milky Way Nuclear Star Cluster in Context

Tuesday, January 26th, 2010

arXiv:1001.4238

by Schoedel, Rainer
Proceedings article for the Galactic Center Workshop 2009, Shanghai. The conference proceedings will be published in the Astronomical Society of the Pacific Conference Series

more …

Massive Young Stars in the Galactic Center

Tuesday, January 26th, 2010

arXiv:1001.4232

by Bartko, H.
Proceedings of the Galactic Center Workshop 2009, Shanghai

more …

Toward Precision Measurement of Central Black Hole Masses

Sunday, January 24th, 2010

arXiv:1001.3675

by Peterson, Bradley M.
10 pages, 2 figures. To be published in the Proceedings of IAU Symposium 267 “Co-Evolution of Central Black Holes and Galaxies”

more …

The extreme luminosity states of Sagittarius A*

Tuesday, January 12th, 2010

arXiv:1001.1351

by Sabha, N. and Witzel, G. and Eckart, A. and Buchholz, R. M. and Bremer, M. and Giessuebel, R. and Garcia-Marin, M. and Kunneriath, D. and Muzic, K. and Schoedel, R. and Straubmeier, C. and Zamaninasab, M. and Zernickel, A.
18 pages, 13 figures, accepted by A&A

more …

Measuring Black Hole Spin in OJ287

Monday, January 11th, 2010

arXiv:1001.1284

by Valtonen, M. and Mikkola, S. and Lehto, H. J. and Hyvönen, T. and Nilsson, K. and Merritt, D. and Gopakumar, A. and Rampadarath, H. and Hudec, R. and Basta, M. and Saunders, R.
12 pages, 4 figures, IAU261

more …

An Intermediate-mass Black Hole of Over 500 Solar Masses in the Galaxy ESO 243-49

Monday, January 11th, 2010

arXiv:1001.0567

by Farrell, Sean and Webb, Natalie and Barret, Didier and Godet, Olivier and Rodrigues, Joana
5 pages, 2 figures, 1 table, published in Nature

more …

The EXIST view of Super-Massive Black Holes in the Universe

Thursday, December 17th, 2009

arXiv:0912.3096

by Della Ceca, Roberto and Ghisellini, Gabriele and Tagliaferri, Gianpiero and Foschini, Luigi and Pareschi, Giovanni and Tavecchio, Fabrizio and Coppi, Paolo and Grindlay, Josh E. and Fiocchi, Maria Teresa and Natalucci, Lorenzo and Panessa, Francesca and Ubertini, Pietro
6 pages, 2 figures. Proc. of Workshop “The Extreme sky: Sampling the Universe above 10 keV”, Otranto (Lecce) Italy, October 13-17, 2009 Proceedings of Science, http://pos.sissa.it. Submitted version

more …

Cosmic Evolution of Black Holes and Spheroids. IV. The BH Mass – Spheroid Luminosity Relation

Thursday, December 17th, 2009

arXiv:0911.4107

by Bennert, Vardha Nicola and Treu, Tommaso and Woo, Jong-Hak and Malkan, Matthew A. and Bris, Alexandre Le and Auger, Matthew W. and Gallagher, Sarah and Blandford, Roger D.
39 pages, 11 figures. Accepted for publication in the Astrophysical Journal

more …

Near infrared flares of Sagittarius A*: Importance of near infrared polarimetry

Thursday, December 17th, 2009

arXiv:0911.4659

by Zamaninasab, M. and Eckart, A. and Witzel, G. and Dovciak, M. and Karas, V. and Giessuebel, R. Schoedel R. and Bremer, M. and Garcia-Marin, M. and Kunneriath, D. and Muzic, K. and Nishiyama, S. and Sabha, N. and Straubmeier, C. and Zensus, A.
26 pages, 38 figures, accepted for publication by A&A

more …

Variability and stability in blazar jets on time scales of years: Optical polarization monitoring of OJ287 in 2005-2009

Thursday, December 17th, 2009

arXiv:0912.0005

by Villforth, C. and Nilsson, K. and Heidt, J. and Takalo, L. O. and Pursimo, T. and Berdyugin, A. and Lindfors, E. and Pasanen, M. and Winiarski, M. and Drozdz, M. and Ogloza, W. and Kurpinska-Winiarska, M. and Siwak, M. and Koziel-Wierzbowska, D. and Porowski, C. and Kuzmicz, A. and Krzesinski, J. and Kundera, T. and Wu, J. -H. and Zhou, X. and Efimov, Y. and Sadakane, K. and Kamada, M. and Ohlert, J. and Hentunen, V. -P. and Nissinen, M. and Dietrich, M. and Assef, R. J. and Atlee, D. W. and Bird, J. and DePoy, D. L. and Eastman, J. and Peeples, M. S. and Prieto, J. and Watson, L. and Yee, J. C. and Liakos, A. and Niarchos, P. and Gazeas, K. and Dogru, S. and Donmez, A. and Marchev, D. and Coggins-Hill, S. A. and Mattingly, A. and Keel, W. C. and Haque, S. and Aungwerojwit, A. and Bergvall, N.
Accepted for publication in MNRAS (26 pages, 24 figures, 4 tables)

more …

Measuring the spin of the primary black hole in OJ287

Thursday, December 17th, 2009

arXiv:0912.1209

by Valtonen, M. J. and Mikkola, S. and Merritt, D. and Gopakumar, A. and Lehto, H. J. and Hyvönen, T. and Rampadarath, H. and Saunders, R. and Basta, M. and Hudec, R.
12 pages, 6 figures

more …

Detection of IMBHs from microlensing in globular clusters

Thursday, December 17th, 2009

arXiv:0912.1435

by Safonova, M. and Stalin, C. S.
10 pages, 11 figures, accepted in New Astronomy

more …

X-Ray Localization of the Intermediate-Mass Black Hole in the Globular Cluster G1 with Chandra

Thursday, October 22nd, 2009

arXiv:0910.3944

by Kong, A. K. H. and Heinke, C. O. and Di Stefano, R. and Barmby, P. and Lewin, W. H. G. and Primini, F. A.
5 pages, 1 figure, submitted to ApJL

more …

On the spatial distribution and the origin of hypervelocity stars

Tuesday, October 20th, 2009

arXiv:0910.3260

by Lu, Youjun and Zhang, Fupeng and Yu, Qingjuan
7 pages, 5 figures

more …

The orbit of the star S2 around SgrA* from VLT and Keck data

Monday, October 19th, 2009

arXiv:0910.3069

by Gillessen, S. and Eisenhauer, F. and Fritz, T. K. and Bartko, H. and Dodds-Eden, K. and Pfuhl, O. and Ott, T. and Genzel, R.
submitted to ApJL

more …

Black Hole Growth and Starburst Activity at z=0.6-4 in the Chandra Deep Field South

Wednesday, October 7th, 2009

arXiv:0910.1007

by Brusa, M. and Fiore, F. and Santini, P. and Grazian, A. and Comastri, A. and Zamorani, G. and Hasinger, G. and Merloni, A. and Civano, F. and Fontana, A. and Mainieri, V.
19 pages, 11 figures, A&A in press

more …