TY - JOUR
T1 - The MAVERIC Survey
T2 - Still No Evidence for Accreting Intermediate-mass Black Holes in Globular Clusters
AU - Tremou, Evangelia
AU - Strader, Jay
AU - Chomiuk, Laura
AU - Shishkovsky, Laura
AU - MacCarone, Thomas J.
AU - Miller-Jones, James C.A.
AU - Tudor, Vlad
AU - Heinke, Craig O.
AU - Sivakoff, Gregory R.
AU - Seth, Anil C.
AU - Noyola, Eva
N1 - Funding Information:
We thank an anonymous referee and B.Stappers and B.Perera for useful comments. The National Radio Astronomy Observatory is a facility of the National Science Foundation (NSF) operated under cooperative agreement by Associated Universities, Inc. The ATCA is part of the Australia Telescope National Facility, which is funded by the Australian government for operation as a national facility managed by CSIRO.
Funding Information:
J.S. acknowledges support from the Packard Foundation. We thank the NSF through support from grants AST-1308124 and AST-1514763. J.C.A.M.-J. is the recipient of an Australian Research Council Future Fellowship (FT140101082). C.O.H. and G.R.S. are supported by NSERC Discovery Grants, and C.O.H. is also supported by an NSERC Discovery Accelerator Supplement. A.C.S. acknowledges financial support from NSF AST-1350389. Facilities: VLA, ATCA.
Publisher Copyright:
© 2018. The American Astronomical Society. All rights reserved.
PY - 2018/7/20
Y1 - 2018/7/20
N2 - We present the results of an ultradeep, comprehensive radio continuum survey for the accretion signatures of intermediate-mass black holes (IMBHs) in globular clusters (GCs). The sample, imaged with the Karl G. Jansky Very Large Array and the Australia Telescope Compact Array, comprises 50 Galactic GCs. No compelling evidence for an IMBH is found in any cluster in our sample. In order to achieve the highest sensitivity to low-level emission, we also present the results of an overall stack of our sample as well as various subsamples, also finding nondetections. These results strengthen the idea that IMBHs with masses 1000M o are rare or absent in GCs.
AB - We present the results of an ultradeep, comprehensive radio continuum survey for the accretion signatures of intermediate-mass black holes (IMBHs) in globular clusters (GCs). The sample, imaged with the Karl G. Jansky Very Large Array and the Australia Telescope Compact Array, comprises 50 Galactic GCs. No compelling evidence for an IMBH is found in any cluster in our sample. In order to achieve the highest sensitivity to low-level emission, we also present the results of an overall stack of our sample as well as various subsamples, also finding nondetections. These results strengthen the idea that IMBHs with masses 1000M o are rare or absent in GCs.
KW - black hole physics
KW - globular clusters: general
KW - radio continuum: general
UR - http://www.scopus.com/inward/record.url?scp=85050722214&partnerID=8YFLogxK
U2 - 10.3847/1538-4357/aac9b9
DO - 10.3847/1538-4357/aac9b9
M3 - Article
AN - SCOPUS:85050722214
SN - 0004-637X
VL - 862
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1
M1 - 16
ER -