Observations of ^(12)CO at high redshift indicate rapid metal enrichment in the nuclear regions of at least some galaxies in the early universe. However, the enrichment may be limited to nuclei that are synthesized by short-lived massive stars, excluding classical “secondary” nuclei like ^(13)C. Testing this idea, we used the IRAM Interferometer to tentatively detect the ^(13)CO J = 3 → 2 line at a level of 0.3 Jy km s^(-1) toward the Cloverleaf quasar at z = 2.5. This is the first observational evidence for ^(13)C at high redshift. The ^(12)CO/^(13)CO J = 3 → 2 luminosity ratio is with 40_(-8)^(+25) much higher than ratios observed in molecular clouds of the Milky Way and in the ultraluminous galaxy Arp 220, but may be similar to that obse...
Using the Very Large Array and ALMA, we have obtained CO(2–1), [C II], and [N II] line emission and ...
We present deep observations of CO(3-2) from the Cloverleaf lensed quasar-starburst at $z=2.56$. We ...
There is a growing consensus that the emergence of quasars at high redshifts is related to the onset...
Observations of ^(12)CO at high redshift indicate rapid metal enrichment in the nuclear regions of a...
Observations of 12CO at high redshift indicate rapid metal enrichment in the nuclear regions of at l...
We present ^(12)CO(J = 1 → 0) observations of the high-redshift quasi-stellar objects (QSOs) BR 1202...
New millimeter-wavelength emission lines are reported for the Cloverleaf (H1413+117), a gravitationa...
We present CO luminosity evolution of both elliptical and spiral galaxies based on a galactic wind m...
We present the first broadband λ = 1 mm spectrum toward the z = 2.56 Cloverleaf quasar, obtained wit...
We present ALMA 12CO (J = 1-0, 3-2 and 6-5), 13CO (J = 1-0), and C18O (J = 1-0) observations of the ...
We present observations of ^(13)CO(1-0) in 17 Combined Array for Research in Millimeter Astronomy (C...
We report the detection of CO(J = 1→0) emission in the strongly lensed high-redshift quasars IRAS F1...
We report the first detections of the [N II] 122 μm line from a high-redshift galaxy. The line was s...
We report the detection of luminous CO(J = 2→1), CO(J = 3→2), and CO(J = 4→3) emission in the strong...
GALAXIES at high redshift are very faint and difficult to study at optical and near-infrared wavelen...
Using the Very Large Array and ALMA, we have obtained CO(2–1), [C II], and [N II] line emission and ...
We present deep observations of CO(3-2) from the Cloverleaf lensed quasar-starburst at $z=2.56$. We ...
There is a growing consensus that the emergence of quasars at high redshifts is related to the onset...
Observations of ^(12)CO at high redshift indicate rapid metal enrichment in the nuclear regions of a...
Observations of 12CO at high redshift indicate rapid metal enrichment in the nuclear regions of at l...
We present ^(12)CO(J = 1 → 0) observations of the high-redshift quasi-stellar objects (QSOs) BR 1202...
New millimeter-wavelength emission lines are reported for the Cloverleaf (H1413+117), a gravitationa...
We present CO luminosity evolution of both elliptical and spiral galaxies based on a galactic wind m...
We present the first broadband λ = 1 mm spectrum toward the z = 2.56 Cloverleaf quasar, obtained wit...
We present ALMA 12CO (J = 1-0, 3-2 and 6-5), 13CO (J = 1-0), and C18O (J = 1-0) observations of the ...
We present observations of ^(13)CO(1-0) in 17 Combined Array for Research in Millimeter Astronomy (C...
We report the detection of CO(J = 1→0) emission in the strongly lensed high-redshift quasars IRAS F1...
We report the first detections of the [N II] 122 μm line from a high-redshift galaxy. The line was s...
We report the detection of luminous CO(J = 2→1), CO(J = 3→2), and CO(J = 4→3) emission in the strong...
GALAXIES at high redshift are very faint and difficult to study at optical and near-infrared wavelen...
Using the Very Large Array and ALMA, we have obtained CO(2–1), [C II], and [N II] line emission and ...
We present deep observations of CO(3-2) from the Cloverleaf lensed quasar-starburst at $z=2.56$. We ...
There is a growing consensus that the emergence of quasars at high redshifts is related to the onset...