Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Gallagher, Molly"'
Autor:
Neumann, Lukas, Bigiel, Frank, Barnes, Ashley T., Gallagher, Molly J., Leroy, Adam, Usero, Antonio, Rosolowsky, Erik, Bešlić, Ivana, Boquien, Médéric, Cao, Yixian, Chevance, Mélanie, Colombo, Dario, Dale, Daniel A., Eibensteiner, Cosima, Grasha, Kathryn, Henshaw, Jonathan D., Jiménez-Donaire, María J., Meidt, Sharon, Menon, Shyam H., Murphy, Eric J., Pan, Hsi-An, Querejeta, Miguel, Saito, Toshiki, Schinnerer, Eva, Stuber, Sophia K., Teng, Yu-Hsuan, Williams, Thomas G.
The star formation rate (SFR) is tightly connected to the amount of dense gas in molecular clouds. However, it is not fully understood how the relationship between dense molecular gas and star formation varies within galaxies and in different morphol
Externí odkaz:
http://arxiv.org/abs/2406.12025
Autor:
Neumann, Lukas, Gallagher, Molly J., Bigiel, Frank, Leroy, Adam K., Barnes, Ashley T., Usero, Antonio, Brok, Jakob S. den, Belfiore, Francesco, Bešlić, Ivana, Cao, Yixian, Chevance, Mélanie, Dale, Daniel A., Eibensteiner, Cosima, Glover, Simon C. O., Grasha, Kathryn, Henshaw, Jonathan D., Jiménez-Donaire, María J., Klessen, Ralf S., Kruijssen, J. M. Diederik, Liu, Daizhong, Meidt, Sharon, Pety, Jérôme, Puschnig, Johannes, Querejeta, Miguel, Rosolowsky, Erik, Schinnerer, Eva, Schruba, Andreas, Sormani, Mattia C., Sun, Jiayi, Teng, Yu-Hsuan, Williams, Thomas G.
We use new HCN(1-0) data from the ALMOND (ACA Large-sample Mapping Of Nearby galaxies in Dense gas) survey to trace the kpc-scale molecular gas density structure and CO(2-1) data from PHANGS-ALMA to trace the bulk molecular gas across 25 nearby, star
Externí odkaz:
http://arxiv.org/abs/2302.03042
Autor:
Gallagher, Molly Jean
Gas density plays an important role in galactic evolution via its connection to star formation. Yet because dense gas is difficult to observe, we are only beginning to explore how interstellar gas density and its relationship to the star formation ra
Autor:
Das, Sanskriti, Sardone, Amy, Leroy, Adam K., Mathur, Smita, Gallagher, Molly, Pingel, Nickolas M., Pisano, D. J., Heald, George
Publikováno v:
ApJ 898, 15 (2020)
We present detections of 21-cm emission from neutral hydrogen (HI) in the circumgalactic medium (CGM) of the local edge-on galaxies NGC 891 and NGC 4565 using the Robert C. Byrd Green Bank Telescope (GBT). With our 5$\sigma$ sensitivity of $8.2 \time
Externí odkaz:
http://arxiv.org/abs/2005.13684
Autor:
Leroy, Adam K., Sandstrom, Karin M., Lang, Dustin, Lewis, Alexia, Salim, Samir, Behrens, Erica A., Chastenet, Jérémy, Chiang, I-Da, Gallagher, Molly J., Kessler, Sarah, Utomo, Dyas
Publikováno v:
The Astrophysical Journal Supplement Series, 244:24 (39pp), 2019 October
We present an atlas of ultraviolet and infrared images of ~15,750 local (d < 50 Mpc) galaxies, as observed by NASA's WISE and GALEX missions. These maps have matched resolution (FWHM 7.5'' and 15''), matched astrometry, and a common procedure for bac
Externí odkaz:
http://arxiv.org/abs/1910.13470
Autor:
Gallagher, Molly J., Leroy, Adam K., Bigiel, Frank, Cormier, Diane, Jiménez-Donaire, María J., Hughes, Annie, Pety, Jérôme, Schinnerer, Eva, Sun, Jiayi, Usero, Antonio, Utomo, Dyas, Bolatto, Alberto, Chevance, Mélanie, Faesi, Christopher M., Glover, Simon C. O., Kepley, Amanda A., Kruijssen, J. M. Diederik, Krumholz, Mark R., Meidt, Sharon E., Meier, David S., Murphy, Eric J., Querejeta, Miguel, Rosolowsky, Erik, Saito, Toshiki, Schruba, Andreas
We use ALMA and IRAM 30-m telescope data to investigate the relationship between the spectroscopically-traced dense gas fraction and the cloud-scale (120 pc) molecular gas surface density in five nearby, star-forming galaxies. We estimate the dense g
Externí odkaz:
http://arxiv.org/abs/1811.07940
Autor:
Kepley, Amanda A., Bittle, Lauren, Leroy, Adam K., Jimenez-Donaire, Maria J., Schruba, Andreas, Bigiel, Frank, Gallagher, Molly, Johnson, Kelsey, Usero, Antonio
Dense molecular gas and star formation are correlated in galaxies. The effect of low metallicity on this relationship is crucial for interpreting observations of high redshift galaxies, which have lower metallicities than galaxies today. However, it
Externí odkaz:
http://arxiv.org/abs/1806.07973
Autor:
Gallagher, Molly J., Leroy, Adam K., Bigiel, Frank, Cormier, Diane, Jiménez-Donaire, María J., Ostriker, Eve, Usero, Antonio, Bolatto, Alberto D., García-Burillo, Santiago, Hughes, Annie, Kepley, Amanda A., Krumholz, Mark, Meidt, Sharon E., Meier, David S., Murphy, Eric J., Pety, Jérôme, Rosolowsky, Erik, Schinnerer, Eva, Schruba, Andreas, Walter, Fabian
We use new ALMA observations to investigate the connection between dense gas fraction, star formation rate, and local environment across the inner region of four local galaxies showing a wide range of molecular gas depletion times. We map HCN (1-0),
Externí odkaz:
http://arxiv.org/abs/1803.10785
Autor:
Leroy, Adam K., Schinnerer, Eva, Hughes, Annie, Kruijssen, J. M. Diederik, Meidt, Sharon, Schruba, Andreas, Sun, Jiayi, Bigiel, Frank, Aniano, Gonzalo, Blanc, Guillermo A., Bolatto, Alberto, Chevance, Mélanie, Colombo, Dario, Gallagher, Molly, Garcia-Burillo, Santiago, Kramer, Carsten, Querejeta, Miguel, Pety, Jerome, Thompson, Todd A., Usero, Antonio
We compare the structure of molecular gas at $40$ pc resolution to the ability of gas to form stars across the disk of the spiral galaxy M51. We break the PAWS survey into $370$ pc and $1.1$ kpc resolution elements, and within each we estimate the mo
Externí odkaz:
http://arxiv.org/abs/1706.08540
Autor:
Leroy, Adam K., Usero, Antonio, Schruba, Andreas, Bigiel, Frank, Kruijssen, J. M. Diederik, Kepley, Amanda, Blanc, Guillermo A., Bolatto, Alberto D., Cormier, Diane, Gallagher, Molly, Hughes, Annie, Jimenez-Donaire, Maria J., Rosolowsky, Erik, Schinnerer, Eva
We explore the use of mm-wave emission line ratios to trace molecular gas density when observations integrate over a wide range of volume densities within a single telescope beam. For observations targeting external galaxies, this case is unavoidable
Externí odkaz:
http://arxiv.org/abs/1611.09864