scholarly journals [ITAL]Hubble Space Telescope[/ITAL] Evidence for an Intermediate-Mass Black Hole in the Globular Cluster M15. I. STIS Spectroscopy and WFPC2 Photometry

2002 ◽  
Vol 124 (6) ◽  
pp. 3255-3269 ◽  
Author(s):  
Roeland P. van der Marel ◽  
Joris Gerssen ◽  
Puragra Guhathakurta ◽  
Ruth C. Peterson ◽  
Karl Gebhardt
2002 ◽  
Vol 124 (6) ◽  
pp. 3270-3288 ◽  
Author(s):  
Joris Gerssen ◽  
Roeland P. van der Marel ◽  
Karl Gebhardt ◽  
Puragra Guhathakurta ◽  
Ruth C. Peterson ◽  
...  

1994 ◽  
Vol 107 ◽  
pp. 1745 ◽  
Author(s):  
Brian Yanny ◽  
Puragra Guhathakurta ◽  
John N. Bahcall ◽  
Donald P. Schneider

2006 ◽  
Vol 371 (4) ◽  
pp. 1587-1593 ◽  
Author(s):  
K. K. Ghosh ◽  
V. Suleymanov ◽  
I. Bikmaev ◽  
S. Shimansky ◽  
N. Sakhibullin

2019 ◽  
Vol 488 (3) ◽  
pp. 3857-3865
Author(s):  
L R Bedin ◽  
M Salaris ◽  
J Anderson ◽  
M Libralato ◽  
D Apai ◽  
...  

ABSTRACT We report on the white dwarf (WD) cooling sequence of the old globular cluster NGC 6752, which is chemically complex and hosts a blue horizontal branch. This is one of the last globular cluster WD cooling sequences accessible to imaging by the Hubble Space Telescope. Our photometry and completeness tests show that we have reached the peak of the luminosity function of the WD cooling sequence, at a magnitude mF606W  = 29.4 ± 0.1, which is consistent with a formal age of ∼14 Gyr. This age is also consistent with the age from fits to the main-sequence turn-off (13–14 Gyr), reinforcing our conclusion that we observe the expected accumulation of WDs along the cooling sequence.


2010 ◽  
Vol 513 ◽  
pp. A16 ◽  
Author(s):  
R. H. H. Huang ◽  
W. Becker ◽  
P. D. Edmonds ◽  
R. F. Elsner ◽  
C. O. Heinke ◽  
...  

2003 ◽  
Vol 343 (2) ◽  
pp. 665-678 ◽  
Author(s):  
Paul Goudfrooij ◽  
Jay Strader ◽  
Laura Brenneman ◽  
Markus Kissler-Patig ◽  
Dante Minniti ◽  
...  

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