Rotating black holes can have short bristles
The elegant ‘no short hair’ theorem states that, if a spherically-symmetric static black hole has hair, then this hair must extend beyond 3/2 the horizon radius. In the present paper we provide evidence for the failure of this theorem beyond the regime of spherically-symmetric static black holes. In...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2014-12-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269314007953 |
| id |
doaj-794c2994f3414e19945a0a54393bb819 |
|---|---|
| record_format |
Article |
| spelling |
doaj-794c2994f3414e19945a0a54393bb8192020-11-24T20:58:04ZengElsevierPhysics Letters B0370-26932014-12-01739196200Rotating black holes can have short bristlesShahar Hod0The Ruppin Academic Center, Emeq Hefer 40250, Israel; The Hadassah Institute, Jerusalem 91010, Israel; Correspondence to: The Ruppin Academic Center, Emeq Hefer 40250, Israel.The elegant ‘no short hair’ theorem states that, if a spherically-symmetric static black hole has hair, then this hair must extend beyond 3/2 the horizon radius. In the present paper we provide evidence for the failure of this theorem beyond the regime of spherically-symmetric static black holes. In particular, we show that rotating black holes can support extremely short-range stationary scalar configurations (linearized scalar ‘clouds’) in their exterior regions. To that end, we solve analytically the Klein–Gordon–Kerr–Newman wave equation for a linearized massive scalar field in the regime of large scalar masses.http://www.sciencedirect.com/science/article/pii/S0370269314007953 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Shahar Hod |
| spellingShingle |
Shahar Hod Rotating black holes can have short bristles Physics Letters B |
| author_facet |
Shahar Hod |
| author_sort |
Shahar Hod |
| title |
Rotating black holes can have short bristles |
| title_short |
Rotating black holes can have short bristles |
| title_full |
Rotating black holes can have short bristles |
| title_fullStr |
Rotating black holes can have short bristles |
| title_full_unstemmed |
Rotating black holes can have short bristles |
| title_sort |
rotating black holes can have short bristles |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 |
| publishDate |
2014-12-01 |
| description |
The elegant ‘no short hair’ theorem states that, if a spherically-symmetric static black hole has hair, then this hair must extend beyond 3/2 the horizon radius. In the present paper we provide evidence for the failure of this theorem beyond the regime of spherically-symmetric static black holes. In particular, we show that rotating black holes can support extremely short-range stationary scalar configurations (linearized scalar ‘clouds’) in their exterior regions. To that end, we solve analytically the Klein–Gordon–Kerr–Newman wave equation for a linearized massive scalar field in the regime of large scalar masses. |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269314007953 |
| work_keys_str_mv |
AT shaharhod rotatingblackholescanhaveshortbristles |
| _version_ |
1716786589210771456 |