%0 Generic %1 umehata2016reveals %A Umehata, Hideki %A Matsuda, Yuichi %A Tamura, Yoichi %A Kohno, Kotaro %A Smail, Ian %A Ivison, R. J. %A Steidel, Charles C. %A Chapman, Scott C. %A Geach, James E. %A Hayes, Matthew %A Nagao, Tohru %A Ao, Yiping %A Kawabe, Ryohei %A Yun, Min S. %A Hatsukade, Bunyo %A Kubo, Mariko %A Kato, Yuta %A Saito, Tomoki %A Ikarashi, Soh %A Nakanishi, Kouichiro %A Lee, Minju %A Izumi, Takuma %A Mori, Masao %A Ouchi, Masami %D 2016 %K CII Lya blob emission %T ALMA reveals Strong CII emission in a galaxy embedded in a giant Lyman-alpha blob at z=3.1 %U http://arxiv.org/abs/1701.00043 %X We report the result from observations conducted with the Atacama Large Millimeter/submillimeter Array (ALMA) to detect CII 158 um fine structure line emission from galaxies embedded in one of the most spectacular Lyman-alpha blobs (LABs) at z=3.1, SSA22-LAB1. Of three dusty star-forming galaxies previously discovered by ALMA 860 um dust continuum survey toward SSA22-LAB1, we detected the CII line from one, LAB1-ALMA3 at z=3.0993+/-0.0004. No line emission was detected, associated with the other ALMA continuum sources or from three rest-frame UV/optical selected z_spec~3.1 galaxies within the field of view. For LAB1-ALMA3, we find relatively bright CII emission compared to the infrared luminosity (L_CII/L_CII) and an extremely high CII 158 um and NII 205 um emission line ratio (L_CII/L_NII>55). The relatively strong CII emission may be caused by abundant photodissociation regions and sub-solar metallicity, or by shock heating. The origin of the unusually strong CII emission could be causally related to the location within the giant LAB, although the relationship between extended Lyman-alpha emission and ISM conditions of associated galaxies is yet to be understand.

@misc{umehata2016reveals, abstract = {We report the result from observations conducted with the Atacama Large Millimeter/submillimeter Array (ALMA) to detect [CII] 158 um fine structure line emission from galaxies embedded in one of the most spectacular Lyman-alpha blobs (LABs) at z=3.1, SSA22-LAB1. Of three dusty star-forming galaxies previously discovered by ALMA 860 um dust continuum survey toward SSA22-LAB1, we detected the [CII] line from one, LAB1-ALMA3 at z=3.0993+/-0.0004. No line emission was detected, associated with the other ALMA continuum sources or from three rest-frame UV/optical selected z_spec~3.1 galaxies within the field of view. For LAB1-ALMA3, we find relatively bright [CII] emission compared to the infrared luminosity (L_[CII]/L_[CII]) and an extremely high [CII] 158 um and [NII] 205 um emission line ratio (L_[CII]/L_[NII]>55). The relatively strong [CII] emission may be caused by abundant photodissociation regions and sub-solar metallicity, or by shock heating. The origin of the unusually strong [CII] emission could be causally related to the location within the giant LAB, although the relationship between extended Lyman-alpha emission and ISM conditions of associated galaxies is yet to be understand.}, added-at = {2017-01-03T10:33:56.000+0100}, author = {Umehata, Hideki and Matsuda, Yuichi and Tamura, Yoichi and Kohno, Kotaro and Smail, Ian and Ivison, R. J. and Steidel, Charles C. and Chapman, Scott C. and Geach, James E. and Hayes, Matthew and Nagao, Tohru and Ao, Yiping and Kawabe, Ryohei and Yun, Min S. and Hatsukade, Bunyo and Kubo, Mariko and Kato, Yuta and Saito, Tomoki and Ikarashi, Soh and Nakanishi, Kouichiro and Lee, Minju and Izumi, Takuma and Mori, Masao and Ouchi, Masami}, biburl = {https://www.bibsonomy.org/bibtex/2b70ad7d028472a1949365df7416a0b0b/miki}, description = {[1701.00043] ALMA reveals Strong [CII] emission in a galaxy embedded in a giant Lyman-alpha blob at z=3.1}, interhash = {6c3767bffcef59347ed157d19e7a0794}, intrahash = {b70ad7d028472a1949365df7416a0b0b}, keywords = {CII Lya blob emission}, note = {cite arxiv:1701.00043Comment: 6 pages, 4 figures, 1 table, accepted for publication in the Astrophysical Journal Letters}, timestamp = {2017-01-03T10:33:56.000+0100}, title = {ALMA reveals Strong [CII] emission in a galaxy embedded in a giant Lyman-alpha blob at z=3.1}, url = {http://arxiv.org/abs/1701.00043}, year = 2016 }