Recognizing the First Radiation Sources Through Their 21-cm Signature - INSPIRE

DataBETA

Recognizing the First Radiation Sources Through Their 21-cm Signature

Leonid Chuzhoy
(
- Texas U., McDonald Observ. and
- Texas U., Astron. Dept.
)
,
Marcelo A. Alvarez
(
- Texas U., McDonald Observ. and
- Texas U., Astron. Dept.
)
,
Paul R. Shapiro
(
- Texas U., McDonald Observ. and
- Texas U., Astron. Dept.
)

May, 2006

4 pages

Published in:

Astrophys.J.Lett. 648 (2006) L1-L4

e-Print:

astro-ph/0605511 [astro-ph]

DOI:

10.1086/507626

View in:

ADS Abstract Service

reference search37 citations

Citations per year

Abstract: (arXiv)

At the beginning of the reionization epoch, radiation sources produce fluctuations in the redshifted 21-cm background. We show that different types of sources (such as miniquasars, Pop II and III stars, supernovae, etc.) produce distinct signatures in the 21-cm signal radial profiles and statistical fluctuations, through which they can be identified. Further, we show that the 21-cm signal from X-ray emitting sources is much easier to observe than was expected, due to a previously neglected pumping mechanism.

cosmology: theory
early universe
galaxies: formation

References(16)

Figures(0)

A Method for separating the physics from the astrophysics of high-redshift 21 cm fluctuations

- Astrophys.J.Lett. 624 (2005) L65-L68
•
e-Print:
- astro-ph/0409572
•
DOI:
- 10.1086/430599

Detecting the earliest galaxies through two new sources of 21cm fluctuations

- Astrophys.J. 626 (2005) 1-11
•
e-Print:
- astro-ph/0410129
•
DOI:
- 10.1086/429954

Detection and fundamental applications of individual first galaxies

Renyue Cen
(
- Princeton U. Observ.
)

- Astrophys.J. 648 (2006) 47-53
•
e-Print:
- astro-ph/0601010
•
DOI:
- 10.1086/505631

Physics of cosmic reionization

T.Roy Choudhury
(
- SISSA, Trieste and
- Indian Inst. Tech., Kharagpur
)
,
A. Ferrara
(
- SISSA, Trieste
)

e-Print:
- astro-ph/0603149

Selfsimilar cosmological expansion of collisional gas

Leonid Chuzhoy
(
- Technion
)
,
Adi Nusser
(
- Technion
)

- Mon.Not.Roy.Astron.Soc. 335 (2002) 410
•
e-Print:
- astro-ph/0201046
•
DOI:
- 10.1046/j.1365-8711.2002.05632.x

Uv pumping of hyperfine transitions in the light elements, with application to 21-cm hydrogen and 92-cm deuterium lines from the early universe

- Astrophys.J. 651 (2006) 1-7
•
e-Print:
- astro-ph/0512206
•
DOI:
- 10.1086/507670

Heating and cooling of the intergalactic medium by resonance photons

- Astrophys.J. 655 (2007) 843-846
•
e-Print:
- astro-ph/0604483
•
DOI:
- 10.1086/510146

The spin temperature of warm interstellar h I

H. Liszt

- Astron.Astrophys. 371 (2001) 698
•
e-Print:
- astro-ph/0103246
•
DOI:
- 10.1051/0004-6361:20010395

X-ray spectroscopic evidence for intermediate mass black holes: cool accretion disks in two ultra-luminous x-ray sources

- Astrophys.J.Lett. 585 (2003) L37-L40
•
e-Print:
- astro-ph/0211178
•
DOI:
- 10.1086/368373

The Spin temperature of neutral hydrogen during cosmic pre-reionization

Adi Nusser
(
- Technion and
- Cambridge U., Inst. of Astron.
)

- Mon.Not.Roy.Astron.Soc. 359 (2005) 183-190
•
e-Print:
- astro-ph/0409640
•
DOI:
- 10.1111/j.1365-2966.2005.08894.x

- Astrophys.J. 243 127

- Astrophys.J. 298 268

Wilkinson Microwave Anisotropy Probe (WMAP) three year results: implications for cosmology

WMAP

Collaboration

•

D.N. Spergel
(
- Princeton U., Astrophys. Sci. Dept. and
- Cerro-Tololo InterAmerican Obs.
)

et al.

- Astrophys.J.Suppl. 170 (2007) 377
•
e-Print:
- astro-ph/0603449
•
DOI:
- 10.1086/513700

The Discovery of a galaxy-wide superwind from a young massive galaxy at redshift z=~3

et al.

- Nature 436 (2005) 227
•
e-Print:
- astro-ph/0507315
•
DOI:
- 10.1038/nature03718

21 Centimeter fluctuations from cosmic gas at high redshifts

- Astrophys.J. 608 (2004) 622-635
•
e-Print:
- astro-ph/0311514
•
DOI:
- 10.1086/386327

- Astrophys.J. 622 1356