Publications (5)
CO/CO Gradients Across the Disks of Nearby Spiral Galaxies
M. J. Jimenez-Donaire, D. Cormier, F. Bigiel +14
We use the IRAM Large Program EMPIRE and new high-resolution ALMA data to measure 13CO(1-0)/C18O(1-0) intensity ratios across nine nearby spiral galaxies. These isotopologues of CO…
EMPIRE: The IRAM 30-m Dense Gas Survey of Nearby Galaxies
MarÃa J. Jiménez-Donaire, F. Bigiel, A. K. Leroy +14
We present EMPIRE, an IRAM 30-m large program that mapped mm dense gas tracers at kpc resolution across the whole star-forming disk of nine nearby, massiv…
Dense gas is not enough: environmental variations in the star formation efficiency of dense molecular gas at 100pc scales in M51
M. Querejeta, E. Schinnerer, A. Schruba +17
It remains unclear what sets the efficiency with which molecular gas transforms into stars. Here we present a new VLA map of the spiral galaxy M51 in 33GHz radio continuum, an exti…
Optical Depth Estimates and Effective Critical Densities of Dense Gas Tracers in the Inner Parts of Nearby Galaxy Discs
M. J. Jimenez-Donaire, F. Bigiel, A. K. Leroy +17
High critical density molecular lines like HCN(1-0) or HCO+(1-0) represent our best tool to study currently star-forming, dense molecular gas at extragalactic distances. The optica…
Full-disc CO(1-0) mapping across nearby galaxies of the EMPIRE survey and the CO-to-H conversion factor
D. Cormier, F. Bigiel, M. J. Jiménez-Donaire +16
Carbon monoxide (CO) provides crucial information about the molecular gas properties of galaxies. While CO has been targeted extensively, isotopologues such as CO hav…