NO OBSERVATIONAL CONSTRAINTS FROM HYPOTHETICAL COLLISIONS OF HYPOTHETICAL DARK HALO PRIMORDIAL BLACK HOLES WITH GALACTIC OBJECTS
NO OBSERVATIONAL CONSTRAINTS FROM HYPOTHETICAL COLLISIONS OF HYPOTHETICAL DARK HALO PRIMORDIAL BLACK HOLES WITH GALACTIC OBJECTS
复制标题
假设的暗晕原初黑洞与星系物体的假设碰撞没有观测限制
DOI:
10.1088/0004-637x/705/1/659
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发表时间:
--
期刊:
影响因子:
--
通讯作者:
L. Qian
中科院分区:
文献类型:
--
作者:
M. A. Abramowicz;J. K. Becker;P. L. Biermann;A. Garzilli;F. Johansson;L. Qian
It was suggested by several authors that hypothetical primordial black holes (PBHs) may contribute to the dark matter (DM) in our Galaxy. There are strong constraints based on the Hawking evaporation that practically exclude PBHs with masses m pbh∼ 10 15 to10 16 g and smaller as significant contributors to the Galactic DM. Similarly, PBHs with masses greater than about 10 26 g are practically excluded by the gravitational lensing observation. The mass range between 10 16 g< m pbh< 10 26 g is unconstrained. In this paper, we examine possible observational signatures in the unexplored mass range, investigating hypothetical collisions of PBHs with main-sequence stars, red giants, white dwarfs, and neutron stars in our Galaxy. This has previously been discussed as possibly leading to an observable photon eruption due to shock production during the encounter. We find that such collisions are either too rare to be observed (if the PBH masses are typically larger than about 10 20 g), or produce too little power to be detected (if the masses are smaller than about 10 20 g).
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DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
B. Zhilyaev
通讯作者:
B. Zhilyaev
影响因子:
64.8
作者:
F. Halzen;E. Zas;J. MacGibbon;J. MacGibbon;T. Weekes;T. Weekes
通讯作者:
T. Weekes
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
I. Khriplovich;A. Pomeransky;Nicolas Produit;G. Ruban
通讯作者:
G. Ruban
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
M. Roncadelli;A. Treves;R. Turolla
通讯作者:
R. Turolla
DOI:
10.1016/j.physrep.2007.10.006
发表时间:
2007-10
期刊:
Physics Reports
影响因子:
--
作者:
J. Becker
通讯作者:
J. Becker