prikaz prve stranice dokumenta CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array
  Preuzmi
PDF 7.77 MB
Znanstveni rad - Izvorni znanstveni rad
CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array
Astrophysical Journal, 864 (2018); 49. https://doi.org/10.3847/1538-4357/aacb79
Pavesi, Riccardo; Sharon, Chelsea E.; Riechers, Dominik A.; Hodge, Jacqueline A.; Decarli, Roberto; Walter, Fabian; Carilli, Chris L.; Daddi, Emanuele; Smail, Ian; Dickinson, Mark; Ivison, Rob J.; Sargent, Mark; da Cunha, Elisabete; Aravena, Manuel; Darling, Jeremy; Smolčić, Vernesa; Scoville, Nicholas Z.; Capak, Peter L.; Wagg, Jeff Više autora...

Institucijski repozitorij: Repozitorij Prirodoslovno-matematičkog fakulteta

Citirajte ovaj rad

Pavesi, R., Sharon, C. E., Riechers, D. A., Hodge, J. A., Decarli, R., Walter, F. ... Wagg, J. (2018). CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array. Astrophysical Journal, 864.. doi: 10.3847/1538-4357/aacb79

Pavesi, Riccardo, et al. "CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array." Astrophysical Journal, vol. 864, 2018. https://doi.org/10.3847/1538-4357/aacb79

Pavesi, Riccardo, Chelsea E. Sharon, Dominik A. Riechers, Jacqueline A. Hodge, Roberto Decarli, Fabian Walter, Chris L. Carilli, et al. "CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array." Astrophysical Journal 864 (2018). https://doi.org/10.3847/1538-4357/aacb79

Pavesi, R., et al. (2018) 'CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array', Astrophysical Journal, 864. doi: 10.3847/1538-4357/aacb79

Pavesi R, Sharon CE, Riechers DA, Hodge JA, Decarli R, Walter F, i sur.. CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array. Astrophysical Journal [Internet]. 2018. [pristupljeno 18.01.2025.];864. doi: 10.3847/1538-4357/aacb79

R. Pavesi, et al., "CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array", Astrophysical Journal, vol. 864, 2018. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:963976. [Citirano: 18.01.2025.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:963976
Podaci o radu
Naslov (engleski)CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array
AutorRiccardo Pavesi
AutorChelsea E. Sharon
AutorDominik A. Riechers
AutorJacqueline A. Hodge
AutorRoberto Decarli
AutorFabian Walter
AutorChris L. Carilli
AutorEmanuele Daddi
AutorIan Smail
AutorMark Dickinson
AutorRob J. Ivison
AutorMark Sargent
AutorElisabete da Cunha
AutorManuel Aravena
AutorJeremy Darling
AutorVernesa Smolčić
MBZ: 336180
AutorNicholas Z. Scoville
AutorPeter L. Capak
AutorJeff Wagg
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Astronomija i astrofizika
Sažetak (engleski)
We describe the CO Luminosity Density at High-z (COLDz) survey, the first spectral line deep field targeting CO(1–0) emission from galaxies at z = 1.95–2.85 and CO(2–1) at z = 4.91–6.70. The main goal of COLDz is to constrain the cosmic density of molecular gas at the peak epoch of cosmic star formation. By targeting both a wide (~51 arcmin2) and a deep (~9 arcmin^2) area, the survey is designed to robustly constrain the bright end and the characteristic luminosity of the CO(1–0) luminosity function. An extensive analysis of the reliability of our line candidates and new techniques provide detailed completeness and statistical corrections as necessary to determine the best constraints to date on the CO luminosity function. Our blind search for CO(1–0) uniformly selects starbursts and massive main-sequence galaxies based on their cold molecular gas masses. Our search also detects CO(2–1) line emission from optically dark, dusty star-forming galaxies at z > 5. We find a range of spatial sizes for the CO-traced gas reservoirs up to ~40 kpc, suggesting that spatially extended cold molecular gas reservoirs may be common in massive, gas-rich galaxies at z ~ 2. Through CO line stacking, we constrain the gas mass fraction in previously known typical star-forming galaxies at z = 2–3. The stacked CO detection suggests lower molecular gas mass fractions than expected for massive main-sequence galaxies by a factor of ~3–6. We find total CO line brightness at ~34 GHz of 0.45 ± 0.2 μK, which constrains future line intensity mapping and CMB experiments.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaAstrophysical Journal
Brojčani podacivol. 864, 49
p-ISSN0004-637X
e-ISSN1538-4357
DOIhttps://doi.org/10.3847/1538-4357/aacb79
URN:NBNurn:nbn:hr:217:963976
Datum objave publikacije2018
URL dokumentahttps://iopscience.iop.org/article/10.3847/1538-4357/aacb79
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Javna napomena© 2018. The American Astronomical Society. Received 2018 February 13; Revised 2018 May 29; Accepted 2018 June 6; Published 2018 August 29.
Datum i vrijeme pohrane2020-03-01 12:42:52