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Observational constraints on supermassive dark stars

journal contribution
posted on 2023-06-07, 22:20 authored by Erik Zackrisson, Pat Scott, Claes-Erik Rydberg, Fabio Iocco, Sofia Sivertsson, Göran Östlin, Garrelt Mellema, Ilian IlievIlian Iliev, Paul R Shapiro
Some of the first stars could be cooler and more massive than standard stellar models would suggest, due to the effects of dark matter annihilation in their cores. It has recently been argued that such objects may attain masses in the 104¿107 M¿ range and that such supermassive dark stars should be within reach of the upcoming James Webb Space Telescope. Notwithstanding theoretical difficulties with this proposal, we argue here that some of these objects should also be readily detectable with both the Hubble Space Telescope and ground-based 8¿10 m class telescopes. Existing survey data already place strong constraints on 107 M¿ dark stars at z¿ 10. We show that such objects must be exceedingly rare or short lived to have avoided detection.

History

Publication status

  • Published

File Version

  • Published version

Journal

Monthly Notices of the Royal Astronomical Society: Letters

ISSN

1745-3933 [ONLINE]

Issue

1

Volume

410

Page range

L57-L58

Pages

2.0

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

First Open Access (FOA) Date

2014-06-09

First Compliant Deposit (FCD) Date

2014-06-09

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