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Feb20arXiv

Nov month: 17 Eu: 10 NA:3 EA:2 CHile:0 Other: 2
Dec19arXiv Dec 2 week:12 Eu5 NA:2 EA:2 CHile:1 Other: 2
1 arXiv:1911.00028 The ALMA Spectroscopic Survey in the HUDF: Constraining cumulative CO emission at 1≲z≲4 with power spectrum analysis of ASPECS LP data from 84 to 115 GHz Authors: Bade Uzgil, Chris Carilli, Adam Lidz, Fabian Walter, Nithyanandan Thyagarajan, Roberto Decarli, Manuel Aravena, Frank Bertoldi, Paulo C. Cortes, Jorge González-López, Hanae Inami, Gergö Popping, Paul Van der Werf, Jeff Wagg, Axel Weiss Abstract: We present a power spectrum analysis of the ALMA Spectroscopic Survey Large Program (ASPECS LP) data from 84 to 115 GHz. These data predominantly probe small-scale fluctuations (k=10-100 h Mpc−1) in the aggregate CO emission in galaxies at 1≲z≲4. We place an integral constraint on CO luminosity functions (LFs) in this redshift ra… ▽ More ApJ NA
2. arXiv:1911.00518 Spiral arms in the proto-planetary disc HD100453 detected with ALMA: evidence for binary-disc interaction and a vertical temperature gradient G. P. Rosotti, M. Benisty, A. Juhász, R. T accepted on MNRAS Eu
3. arXiv:1911.06005 Demographics of disks around young very low-mass stars and brown dwarfs in Lupus Authors: E. Sanchis, L. Testi, A. Natta, C. F. Manara, B. Ercolano, T. Preibisch, T. Henning, S. Facchini, A. Miotello, I. de Gregorio-Monsalvo, C. Lopez, K. Mužić, I. Pascucci, A Santamaría-Miranda, A. Scholz, M. Tazzari, S. van Terwisga, J. P. Williams Abstract: …continuum ALMA observations of 5 brown dwarfs (BDs) with infrared excess in Lupus I and III -- which, in combination with 4 BDs previously observed, allowed us to study the mm properties of the full known BD disk population of one star-forming region. Emission is detected in 5 out of the 9 BD disks. Dust disk mass, brightness profiles and characteristic siz… ▽ More Accepted for publication on A&A, Eu
4. arXiv:1911.05608 Molecular outflows in local galaxies: Method comparison and a role of intermittent AGN driving uthors: D. Lutz, E. Sturm, A. Janssen, S. Veilleux, S. Aalto, C. Cicone, A. Contursi, R. I. Davies, C. Feruglio, J. Fischer, S. Garcia-Burillo, R. Genzel, E. González-Alfonso, J. Gracía-Carpio R. Herrera-Camus, R. Maiolino, A. Schruba, T. Shimizu, A. Sternberg, L. J. Tacconi, A. Weiß Abstract: We report new detections and limits from a NOEMA and ALMA CO(1-0) search for molecular outflows in 13 local galaxies with high FIR surface brightness, and combine with results from the literature. CO line ratios and outflow structure provide some constraints on the conversion from observables to quantities such as molecular mass outflow rates. Ratios between… ▽ More Astronomy & Astrophysics Eu
5. arXiv:1911.05108 Exploring the Grain Properties in the Disk of HL Tau with an Evolutionary Model Authors: Carlos Tapia, Susana Lizano, Anibal Sierra, Carlos Carrasco-González, Elly Bayona-Bobadilla Abstract: We model the ALMA and VLA millimeter radial profiles of the disk around HL Tau to constrain the properties of the dust grains. We adopt the disk evolutionary models of Lynden-Bell \& Pringle and calculate their temperature and density structure and emission. These disks are heated by the internal viscosity and irradiated by the central star and a warm en… ▽ More Other (Mex)
6. arXiv:1911.04465 The Origin of Massive Stars: The Inertial-Inflow Model Authors: Paolo Padoan, Liubin Pan, Mika Juvela, Troels Haugbølle, Åke Nordlund Abstract: …of massive cores, nor from competitive accretion}, as both models are incompatible with the numerical results. We also compute synthetic continuum observables in Herschel and ALMA bands. We find that, depending on the distance of the observed regions, estimates of core mass based on commonly-used methods may exceed the actual core masses by up to two orders… ▽ More ApJ Eu
7. arXiv:1911.04077 [pdf, other] astro-ph.GA ALMA Observations of Atomic Carbon [C I] (3P1→3P0) and Low-J CO Lines in the Starburst Galaxy NGC 1808 Authors: Dragan Salak, Naomasa Nakai, Masumichi Seta, Yusuke Miyamoto Abstract: We present [C I] (3P1→3P0), 12CO, 13CO, and C18O (J=2→1) observations of the central region (radius 1 kpc) of the starburst galaxy NGC 1808 at 30-50 pc resolution conducted with Atacama Large Millimeter/submillimeter Array. Radiative transfer analysis of multiline data indicates warm (Tk∼40−80 K) and dense (… a universal [C I]-based conversion factor may still be applied if the measured [C I] flux is not dominated by extreme physical conditions, such as the CND in NGC 1808 and (U)LIRGs. ApJ (30 pages, 15 figures) EA
8. arXiv:1911.03495 Temperature profiles of young disk-like structures: The case of IRAS 16293A Authors: Merel L. R. van 't Hoff, Ewine F. van Dishoeck, Jes K. Jørgensen, Hannah Calcutt Abstract: …2422A. We use Atacama Large Millimeter/submillimeter Array (ALMA) observations of multiple H2CS J=7−6 and J=10−9 lines from the Protostellar Interferometric Line Survey (PILS) to create a temperature map for the inner ∼200 AU of the disk-like structure. This molecule is a particularly useful temperature probe because transitions between energy le… ▽ More A&A Eu
9. arXiv:1911.03479 The lifecycle of molecular clouds in nearby star-forming disc galaxies Authors: Mélanie Chevance, J. M. Diederik Kruijssen, Alexander P. S. Hygate, Andreas Schruba, Steven N. Longmore, Brent Groves, Jonathan D. Henshaw, Cinthya N. Herrera, Annie Hughes, Sarah M. R. Jeffreson, Philipp Lang, Adam K. Leroy, Sharon E. Meidt, Jérôme Pety, Alessandro Razza, Erik Rosolowsky, Eva Schinnerer, Frank Bigiel, Guillermo A. Blanc, Eric Emsellem, Christopher M. Faesi, Simon C. O. Glover, Daniel T. Haydon, I-Ting Ho, Kathryn Kreckel , et al. (7 additional authors not shown) Abstract: …method for measuring the evolutionary timeline of the GMC lifecycle, star formation, and feedback to a sample of nine nearby disc galaxies, observed as part of the PHANGS-ALMA survey. We measure the spatially-resolved (∼100 pc) CO-to-Hα flux ratio and find a universal de-correlation between molecular gas and young stars on GMC scales, allowing us to q… ▽ More MNRAS Eu
10. arXiv:1911.09967 Detection of a high-redshift molecular outflow in a primeval hyperstarburst galaxy Authors: G. C. Jones, R. Maiolino, P. Caselli, S. Carniani Abstract: …) with the Atacama Large Millimeter/submillimeter Array (ALMA). The host galaxy is one of the most powerful starburst galaxies at high redshift (star formation rate; SFR ∼3,600M⊙year−1), with an extremely compact (∼320pc) star formation region and a star formation rate surface density (ΣSFR∼5,500M⊙ year−1 kpc… ▽ More A&A:Letters Eu
11. arXiv:1911.09719 Low frequency view of GRB 190114C reveals time varying shock micro-physics Authors: K. Misra, L. Resmi, D. A. Kann, M. Marongiu, A. Moin, S. Klose, A. de Ugarte Postigo, V. K. Jaiswal, D. A. Perley, A. Ghosh, G. Bernardi, S. Schulze, M. J. Michałowski, S. Martín, A. Cockeram, H. Kumar, S. V. Cherukuri, V. Bhalerao, G. E. Anderson, G. C. Anupama, C. C. Thöne, S. Barway, M. H. Wieringa, J. P. U. Fynbo, N. Habeeb Abstract: …optical afterglow observations of the TeV-bright long Gamma Ray Burst (GRB) 190114C, which was detected by the MAGIC telescope at a redshift of z=0.425. Our observations with ALMA, ATCA, and uGMRT were obtained by our low frequency observing campaign and range from ~1 to ~140 days after the burst and the optical observations were done with the 0.7-m GROWTH-I… ▽ More MNRAS, Other (India)
12. arXiv:1911.09667 First Resolved Scattered-Light Images of Four Debris Disks in Scorpius-Centaurus with the Gemini Planet Imager Authors: Justin Hom, Jennifer Patience, Thomas M. Esposito, Gaspard Duchêne, Kadin Worthen, Paul Kalas, Hannah Jang-Condell, Kezman Saboi, Pauline Arriaga, Johan Mazoyer, Schuyler Wolff, Maxwell A. Millar-Blanchaer, Michael P. Fitzgerald, Marshall D. Perrin, Christine H. Chen, Bruce Macintosh, Brenda C. Matthews, Jason J. Wang, James R. Graham, Franck Marchis, S. Mark Ammons, Vanessa P. Bailey, Travis Barman, Joanna Bulger, Jeffrey K. Chilcote , et al. (35 additional authors not shown) Abstract: …with very different morphological properties. HD 98363 A/B is the first binary debris disk system with two spatially resolved disks. All four targets have been observed with ALMA, and their continuum fluxes range from one non-detection to one of the brightest disks in the region. With the new results, a total of 15 A/F-stars in Sco-Cen have resolved scattere… ▽ More NA
13. arXiv:1911.09367 Star-forming Clumps in Local Luminous Infrared Galaxies Authors: K. L. Larson, T. Díaz-Santos, L. Armus, G. C. Privon, S. T. Linden, A. S. Evans, J. Howell, V. Charmandaris, V. U, D. B. Sanders, S. Stierwalt, L. Barcos-Muñoz, J. Rich, A. Medling, D. Cook, A. Oklopĉić, E. J. Murphy, P. Bonfini Abstract: …found in the local LIRGs and have total gas fractions that extend from 10 to 90%. If local LIRGs are similar to these simulated galaxies, we expect future observations with ALMA will find a large range of gas fractions, and corresponding star formation efficiencies, among the star-forming clumps in LIRGs. ▽ More NA
14. arXiv:1911.08580 Long lived dust rings around HD169142 Authors: Claudia Toci, Giuseppe Lodato, Davide Fedele, Leonardo Testi, Christophe Pinte] Abstract: Recent ALMA observations of the protoplanetary disc around HD~169142 reveal a peculiar structure made of concentric dusty rings: a main ring at ∼20 au, a triple system of rings at ∼55−75 au in millimetric continuum emission and a perturbed gas surface density from the 12CO,13CO and C18O(J=2−1) surface brightness profile. In this L… ▽ More Apj Letters Eu
15. arXiv:1911.07876 GRB 190114C in the nuclear region of an interacting galaxy -- A detailed host analysis using ALMA, HST and VLT Authors: A. de Ugarte Postigo, C. C. Thöne, S. Martın, J. Japelj, A. J. Levan, M. J. Michałowski, J. Selsing, D. A. Kann, S. Schulze, J. T. Palmerio, S. D. Vergani, N. R. Tanvir, K. Bensch, S. Covino, V. D'Elia, M. De Pasquale, A. S. Fruchter, J. P. U. Fynbo, D. Hartmann, K. E. Heintz, A. J. van der Horst, L. Izzo, P. Jakobsson, K. C. Y. Ng, D. A. Perley , et al. (6 additional authors not shown) Abstract: …or environmental properties responsible for such a unique event. We use ultraviolet, optical, infrared and submillimetre imaging and spectroscopy obtained with HST, VLT and ALMA to obtain an extensive dataset on which the analysis of the host galaxy is based. The host system is composed of a close pair of interacting galaxies (Delta v = 50 km s^-1), both of… ▽ More A&A, Eu
16. arXiv:1911.07858 Unveiling Sizes of Compact AGN Hosts with ALMA Authors: Yu-Yen Chang, Emeric Le Floc'h, Stéphanie Juneau, Elisabete da Cunha, Mara Salvato, Avishai Dekel, Francesca Civano, Stefano Marchesi, Hyewon Suh, Wei-Hao Wang Abstract: We present rest-frame far-infrared (FIR) and optical size measurements of AGN hosts and star-forming galaxies in the COSMOS field, enabled by high-resolution ALMA/1 mm (0.1 arcsec - 0.4 arcsec) and HST/F814W imaging (~ 0.1 arcsec). Our sample includes 27 galaxies at z<2.5, classified as infrared-selected AGN (3 sources), X-ray selected AGN (4 sources), and non-AGN star-forming galaxies (20 sources), for which high-resolution Band 6/7 ALMA images are available at 1 mm from our own observing program as well as archival observations. The sizes and SFR surface densities measured from both ALMA/1 mm and HST/F814W images show that obscured AGN host galaxies are more compact than non-AGN star-forming galaxies at similar redshift and stellar mass. This result suggests that the obscured accretion phase may be related to galaxies experiencing a compaction of their gaseous component, which could be associated with enhanced central star formation before a subsequent quenching driving the formation of compact passive galaxies. ApJ EA
17. arXiv:1911.06579 Physical Properties of the star-forming clusters in NGC 6334 Authors: Mahya Sadaghiani, Álvaro Sánchez-Monge, Peter Schilke, Hauyu Baobab Liu, Seamus Clarke, Qizhou Zhang, Josep Miquel Girart, Daniel Seifried, Atefeh Aghababaei, Hua-bai Li, Carmen Juárez, Kwok Sun Tang Abstract: We have studied the high-mass star-forming complex NGC 6334 with ALMA in the continuum emission at a frequency of 87.6 GHz, achieving a spatial resolution of 1300 au. Detecting 142 compact sources distributed over the whole observed area, we then used machine learning algorithms to group the compact cores in different clusters. A total of four main clusters… Astronomy & Astrophysics. Eu

-- AlWootten - 2019-11-25

Topic revision: r3 - 2020-02-10, AlWootten

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