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The HASHTAG project I. A Survey of CO(3–2) Emission from the Star Forming Disc of M31

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) (2019)

Authors:

Zongnan Li, Zhiyuan Li, Matthew WL Smith, Christine D Wilson, Yu Gao, Stephen A Eales, Yiping Ao, Martin Bureau, Aeree Chung, Timothy A Davis, Richard de Grijs, David J Eden, Jinhua He, Tom M Hughes, Xuejian Jiang, Francisca Kemper, Isabella Lamperti, Bumhyun Lee, Chien-Hsiu Lee, Michał J Michałowski, Harriet Parsons, Sarah Ragan, Peter Scicluna, Yong Shi, Xindi Tang, Neven Tomičić, Sebastien Viaene, Thomas G Williams, Ming Zhu

Abstract:

Abstract We present a CO(3–2) survey of selected regions in the M31 disc as part of the JCMT large programme, HARP and SCUBA-2 High-Resolution Terahertz Andromeda Galaxy Survey (HASHTAG). The 12 CO(3–2) fields in this survey cover a total area of 60 square arcminutes, spanning a deprojected radial range of 2 – 14 kpc across the M31 disc. Combining these observations with existing IRAM 30m CO(1–0) observations and JCMT CO(3–2) maps of the nuclear region of M31, as well as dust temperature and star formation rate surface density maps, we are able to explore the radial distribution of the CO(3–2)/CO(1–0) integrated intensity ratio (R31) and its relationship with dust temperature and star formation. We find that the value of R31 between 2 – 9 kpc galactocentric radius is 0.14, significantly lower than what is seen in the nuclear ring at  1 kpc (R31 ∼ 0.8), only to rise again to 0.27 for the fields centred on the 10 kpc star forming ring. We also found that R31 is positively correlated with dust temperature, with Spearman’s rank correlation coefficient ρ = 0.55. The correlation between star formation rate surface density and CO(3–2) intensity is much stronger than with CO(1–0), with ρ = 0.54 compared to –0.05, suggesting that the CO(3–2) line traces warmer and denser star forming gas better. We also find that R31 correlates well with star formation rate surface density, with ρ = 0.69.
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The HASHTAG project I. A Survey of CO(3-2) Emission from the Star Forming Disc of M31

(2019)

Authors:

Zongnan Li, Zhiyuan Li, Matthew WL Smith, Christine D Wilson, Yu Gao, Stephen A Eales, Yiping Ao, Martin Bureau, Aeree Chung, Timothy A Davis, Richard de Grijs, David J Eden, Jinhua He, Tom M Hughes, Xuejian Jiang, Francisca Kemper, Isabella Lamperti, Bumhyun Lee, Chien-Hsiu Lee, Michal J Michalowski, Harriet Parsons, Sarah Ragan, Peter Scicluna, Yong Shi, Xindi Tang, Neven Tomicic, Sebastien Viaene, Thomas G Williams, Ming Zhu
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The Sixteenth Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra

(2019)

Authors:

Romina Ahumada, Carlos Allende Prieto, Andres Almeida, Friedrich Anders, Scott F Anderson, Brett H Andrews, Borja Anguiano, Riccardo Arcodia, Eric Armengaud, Marie Aubert, Santiago Avila, Vladimir Avila-Reese, Carles Badenes, Christophe Balland, Kat Barger, Jorge K Barrera-Ballesteros, Sarbani Basu, Julian Bautista, Rachael L Beaton, Timothy C Beers, B Izamar T Benavides, Chad F Bender, Mariangela Bernardi, Matthew Bershady, Florian Beutler, Christian Moni Bidin, Jonathan Bird, Dmitry Bizyaev, Guillermo A Blanc, Michael R Blanton, Mederic Boquien, Jura Borissova, Jo Bovy, WN Brandt, Jonathan Brinkmann, Joel R Brownstein, Kevin Bundy, Martin Bureau, Adam Burgasser, Etienne Burtin, Mariana Cano-Diaz, Raffaella Capasso, Michele Cappellari, Ricardo Carrera, Solene Chabanier, William Chaplin, Michael Chapman, Brian Cherinka, Cristina Chiappini, Peter Doohyun Choi, S Drew Chojnowski, Haeun Chung, Nicolas Clerc, Damien Coffey, Julia M Comerford, Johan Comparat, Luiz da Costa, Marie-Claude Cousinou, Kevin Covey, Jeffrey D Crane, Katia Cunha, Gabriele da Silva Ilha, Yu Sophia Dai, Sanna B Damsted, Jeremy Darling, James W Davidson, Roger Davies, Kyle Dawson, Nikhil De, Axel de la Macorra, Nathan De Lee, Anna Barbara de Andrade Queiroz, Alice Deconto Machado, Sylvain de la Torre, Flavia Dell'Agli, Helion du Mas des Bourboux, Aleksandar M Diamond-Stanic, Sean Dillon, John Donor, Niv Drory, Chris Duckworth, Tom Dwelly, Garrett Ebelke, Sarah Eftekharzadeh, Arthur Davis Eigenbrot, Yvonne P Elsworth, Mike Eracleous, Ghazaleh Erfanianfar, Stephanie Escoffier, Xiaohui Fan, Emily Farr, Jose G Fernandez-Trincado, Diane Feuillet, Alexis Finoguenov, Patricia Fofie, Amelia Fraser-McKelvie, Peter M Frinchaboy, Sebastien Fromenteau, Hai Fu, Lluis Galbany, Rafael A Garcia, DA Garcia-Hernandez, Luis Alberto Garma Oehmichen, Junqiang Ge, Marcio Antonio Geimba Maia, Doug Geisler, Joseph Gelfand, Julian Goddy, Jean-Marc Le Goff, Violeta Gonzalez-Perez, Kathleen Grabowski, Paul Green, Catherine J Grier, Hong Guo, Julien Guy, Paul Harding, Sten Hasselquist, Adam James Hawken, Christian R Hayes, Fred Hearty, S Hekker, David W Hogg, Jon Holtzman, Danny Horta, Jiamin Hou, Bau-Ching Hsieh, Daniel Huber, Jason AS Hunt, J Ider Chitham, Julie Imig, Mariana Jaber, Camilo Eduardo Jimenez Angel, Jennifer A Johnson, Amy M Jones, Henrik Jonsson, Eric Jullo, Yerim Kim, Karen Kinemuchi, Charles C Kirkpatrick, George W Kite, Mark Klaene, Jean-Paul Kneib, Juna A Kollmeier, Hui Kong, Marina Kounkel, Dhanesh Krishnarao, Ivan Lacerna, Ting-Wen Lan, Richard R Lane, David R Law, Henry W Leung, Hannah Lewis, Cheng Li, Jianhui Lian, Lihwai Lin, Dan Long, Penelope Longa-Pena, Britt Lundgren, Brad W Lyke, J Ted Mackereth, Chelsea L MacLeod, Steven R Majewski, Arturo Manchado, Claudia Maraston, Paul Martini, Thomas Masseron, Karen L Masters, Savita Mathur, Richard M McDermid, Andrea Merloni, Michael Merrifield, Szabolcs Meszaros, Andrea Miglio, Dante Minniti, Rebecca Minsley, Takamitsu Miyaji, Faizan Gohar Mohammad, Benoit Mosser, Eva-Maria Mueller, Demitri Muna, Andrea Munoz-Gutierrez, Adam D Myers, Seshadri Nadathur, Preethi Nair, Kirpal Nandra, Janaina Correa do Nascimento, Rebecca Jean Nevin, Jeffrey A Newman, David L Nidever, Christian Nitschelm, Pasquier Noterdaeme, Julia E O'Connell, Matthew D Olmstead, Daniel Oravetz, Audrey Oravetz, Yeisson Osorio, Zachary J Pace, Nelson Padilla, Nathalie Palanque-Delabrouille, Pedro A Palicio, Hsi-An Pan, Kaike Pan, James Parker, Romain Paviot, Sebastien Peirani, Karla Pena Ramrez, Samantha Penny, Will J Percival, Ismael Perez-Fournon, Ignasi Perez-Rafols, Patrick Petitjean, Matthew M Pieri, Marc Pinsonneault, Vijith Jacob Poovelil, Joshua Tyler Povick, Abhishek Prakash, Adrian M Price-Whelan, M Jordan Raddick, Anand Raichoor, Amy Ray, Sandro Barboza Rembold, Mehdi Rezaie, Rogemar A Riffel, Rogerio Riffel, Hans-Walter Rix, Annie C Robin, A Roman-Lopes, Carlos Roman-Zuniga, Benjamin Rose, Ashley J Ross, Graziano Rossi, Kate Rowlands, Kate HR Rubin, Mara Salvato, Ariel G Sanchez, Laura Sanchez-Menguiano, Jose R Sanchez-Gallego, Conor Sayres, Adam Schaefer, Ricardo P Schiavon, Jaderson S Schimoia, Edward Schlafly, David Schlegel, Donald P Schneider, Mathias Schultheis, Axel Schwope, Hee-Jong Seo, Aldo Serenelli, Arman Shafieloo, Shoaib Jamal Shamsi, Zhengyi Shao, Shiyin Shen, Matthew Shetrone, Raphael Shirley, Victor Silva Aguirre, Joshua D Simon, MF Skrutskie, Anze Slosar, Rebecca Smethurst, Jennifer Sobeck, Bernardo Cervantes Sodi, Diogo Souto, David V Stark, Keivan G Stassun, Matthias Steinmetz, Dennis Stello, Julianna Stermer, Thaisa Storchi-Bergmann, Alina Streblyanska, Guy S Stringfellow, Amelia Stutz, Genaro Suarez, Jing Sun, Manuchehr Taghizadeh-Popp, Michael S Talbot, Jamie Tayar, Aniruddha R Thakar, Riley Theriault, Daniel Thomas, Zak C Thomas, Jeremy Tinker, Rita Tojeiro, Hector Hernandez Toledo, Christy A Tremonti, Nicholas W Troup, Sarah Tuttle, Eduardo Unda-Sanzana, Marica Valentini, Jaime Vargas-Gonzalez, Mariana Vargas-Magana, Jose Antonio Vazquez-Mata, M Vivek, David Wake, Yuting Wang, Benjamin Alan Weaver, Anne-Marie Weijmans, Vivienne Wild, John C Wilson, Robert F Wilson, Nathan Wolthuis, WM Wood-Vasey, Renbin Yan, Meng Yang, Christophe Yeche, Olga Zamora, Pauline Zarrouk, Gail Zasowski, Kai Zhang, Cheng Zhao, Gongbo Zhao, Zheng Zheng, Zheng Zheng, Guangtun Zhu, Hu Zou
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KiDS-SQuaD

Astronomy & Astrophysics EDP Sciences 632 (2019) a56

Authors:

Vladislav Khramtsov, Alexey Sergeyev, Chiara Spiniello, Crescenzo Tortora, Nicola R Napolitano, Adriano Agnello, Fedor Getman, Jelte TA de Jong, Konrad Kuijken, Mario Radovich, HuanYuan Shan, Valery Shulga
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Report on Status of ESO Public Surveys and Current Activities

The Messenger 178 (2019) 10-16

Authors:

M Arnaboldi, N Delmotte, D Gadotti, M Hilker, G Hussain, L Mascetti, A Micol, M Petr-Gotzens, M Rejkuba, J Retzlaff, C Spiniello, B Leibundgut, M Romaniello
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