A Systematic Search for Reddest Far-infrared and Sub-millimeter Galaxies: revealing dust-embedded starbursts at high redshifts. Yan, H., Ma, Z., Huang, J., & Fan, L. arXiv e-prints, 1912:arXiv:1912.04354, December, 2019.
A Systematic Search for Reddest Far-infrared and Sub-millimeter Galaxies: revealing dust-embedded starbursts at high redshifts [link]Paper  abstract   bibtex   
We present the results of our systematic search for the reddest far-infrared (FIR) and sub-millimeter (sub-mm) galaxies using the data from the Herschel Multi-tiered Extragalactic Survey (HerMES) and the SCUBA2 Cosmological Legacy Survey (S2CLS). The red FIR galaxies are "500 um risers", whose spectral energy distributions (SEDs) increase with wavelength across the three FIR passbands of the Spectral and Photometric Imaging REceiver (SPIRE) at Herschel. Within 106.5 sq.deg of the HerMES fields, we have selected 629 highly reliable 500 um risers. The red sub-mm galaxies are "SPIRE-dropouts", which are prominent detections in the S2CLS 850 um data but are extremely weak or invisible in the SPIRE bands. Within the 2.98 sq.deg common area of HerMES and S2CLS, we have selected 95 such objects. These very red sources could be dusty starbursts at high redshifts (z\textgreater6) because the peak of their cold-dust emission heated by star formation is shifted to the reddest FIR/sub-mm bands. The surface density of 500 um risers is \textasciitilde8.2 per sq.deg at above 20 mJy level in 500 um, while that of SPIRE-dropouts is \textasciitilde 19.3 per sq.deg at above 5 mJy level in 850 um. Using deep radio data in these field, we find that the surface density of z\textgreater6 objects is 5.5 per sq.deg among 500 um risers and is 0.8–13.6 per sq.deg among SPIRE-dropouts. The dust-embedded star formation processes in such objects contribute comparably as Lyman-break galaxies to the global star formation rate density at \$z{\textgreater}6\$.
@article{yan_systematic_2019,
	title = {A {Systematic} {Search} for {Reddest} {Far}-infrared and {Sub}-millimeter {Galaxies}: revealing dust-embedded starbursts at high redshifts},
	volume = {1912},
	shorttitle = {A {Systematic} {Search} for {Reddest} {Far}-infrared and {Sub}-millimeter {Galaxies}},
	url = {http://adsabs.harvard.edu/abs/2019arXiv191204354Y},
	abstract = {We present the results of our systematic search for the reddest 
far-infrared (FIR) and sub-millimeter (sub-mm) galaxies using the data
from the Herschel Multi-tiered Extragalactic Survey (HerMES) and the
SCUBA2 Cosmological Legacy Survey (S2CLS). The red FIR galaxies are "500
um risers", whose spectral energy distributions (SEDs) increase with
wavelength across the three FIR passbands of the Spectral and
Photometric Imaging REceiver (SPIRE) at Herschel. Within 106.5 sq.deg of
the HerMES fields, we have selected 629 highly reliable 500 um risers.
The red sub-mm galaxies are "SPIRE-dropouts", which are prominent
detections in the S2CLS 850 um data but are extremely weak or invisible
in the SPIRE bands. Within the 2.98 sq.deg common area of HerMES and
S2CLS, we have selected 95 such objects. These very red sources could be
dusty starbursts at high redshifts (z{\textgreater}6) because the peak of their
cold-dust emission heated by star formation is shifted to the reddest
FIR/sub-mm bands. The surface density of 500 um risers is {\textasciitilde}8.2 per
sq.deg at above 20 mJy level in 500 um, while that of SPIRE-dropouts is
{\textasciitilde} 19.3 per sq.deg at above 5 mJy level in 850 um. Using deep radio data
in these field, we find that the surface density of z{\textgreater}6 objects is
5.5 per sq.deg among 500 um risers and is 0.8--13.6 per sq.deg among
SPIRE-dropouts. The dust-embedded star formation processes in such
objects contribute comparably as Lyman-break galaxies to the global star
formation rate density at \$z{\textgreater}6\$.},
	urldate = {2019-12-12},
	journal = {arXiv e-prints},
	author = {Yan, Haojing and Ma, Zhiyuan and Huang, Jia-Sheng and Fan, Lulu},
	month = dec,
	year = {2019},
	keywords = {Astrophysics - Astrophysics of Galaxies, High Energy Physics - Experiment},
	pages = {arXiv:1912.04354},
}

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