MHONGOOSE: A MeerKAT nearby galaxy H I survey

被引：22

作者：

de Blok, W. J. G. ^{[1
,2
,3
]}

Healy, J. ^{[1
]}

Maccagni, F. M. ^{[1
,4
]}

Pisano, D. J. ^{[2
,5
]}

Bosma, A. ^{[6
]}

English, J. ^{[7
]}

Jarrett, T. ^{[2
]}

Marasco, A. ^{[8
]}

Meurer, G. R. ^{[9
]}

Veronese, S. ^{[1
,3
]}

Bigiel, F. ^{[10
]}

Chemin, L. ^{[11
]}

Fraternali, F. ^{[3
]}

Holwerda, B. W. ^{[12
]}

Kamphuis, P. ^{[13
]}

Kloeckner, H. R. ^{[14
]}

Kleiner, D. ^{[1
,4
]}

Leroy, A. K. ^{[15
,16
]}

Mogotsi, M. ^{[17
,18
]}

Oman, K. A. ^{[19
,20
]}

Schinnerer, E. ^{[21
]}

Verdes-Montenegro, L. ^{[22
]}

Westmeier, T. ^{[9
]}

Wong, O. I. ^{[9
,23
]}

Zabel, N. ^{[2
]}

Amram, P. ^{[6
]}

Carignan, C. ^{[2
,24
]}

Combes, F. ^{[25
]}

Brinks, E. ^{[26
]}

Dettmar, R. J. ^{[13
]}

Gibson, B. K. ^{[27
]}

Jozsa, G. I. G. ^{[14
,28
]}

Koribalski, B. S. ^{[29
,30
]}

Mcgaugh, S. S. ^{[31
]}

Oosterloo, T. A. ^{[1
,3
]}

Spekkens, K. ^{[32
,33
]}

Schroeder, A. C. ^{[34
]}

Adams, E. A. K. ^{[1
,3
]}

Athanassoula, E. ^{[6
]}

Bershady, M. A. ^{[2
,17
,35
]}

Beswick, R. J. ^{[36
]}

Blyth, S. ^{[2
]}

Elson, E. C. ^{[37
]}

Frank, B. S. ^{[2
,17
,38
]}

Heald, G. ^{[23
]}

Henning, P. A. ^{[39
,40
]}

Kurapati, S. ^{[2
]}

Loubser, S. I. ^{[41
]}

Lucero, D. ^{[42
]}

Meyer, M. ^{[9
]}

机构：

[1] Netherlands Inst Radio Astron ASTRON, Oude Hoogeveensedijk 4, NL-7991 PD Dwingeloo, Netherlands

[2] Univ Cape Town, Dept Astron, Private Bag X3, ZA-7701 Rondebosch, South Africa

[3] Univ Groningen, Kapteyn Astron Inst, POB 800, NL-9700 AV Groningen, Netherlands

[4] INAF, Osservatorio Astron Cagliari, Via Sci 5, I-09047 Selargius, CA, Italy

[5] Green Bank Observ, 155 Observ Rd, Green Bank, WV 24944 USA

[6] Aix Marseille Univ, CNRS, CNES, LAM, Marseille, France

[7] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada

[8] INAF, Padova Astron Observ, Vicolo Osservatorio 5, I-35122 Padua, Italy

[9] Univ Western Australia, Int Ctr Radio Astron Res, 35 Stirling Highway, Crawley, WA 6009, Australia

[10] Argelander Inst Astron, Auf dem Hugel 71, D-53121 Bonn, Germany

[11] Univ Andres Bello, Dept Ciencias Fis, Inst Astrofis, Fernandez Concha 700, Santiago, Chile

[12] Univ Louisville, Dept Phys & Astron, 102 Nat Sci Bldg, Louisville, KY 40292 USA

[13] Ruhr Univ Bochum, Astron Inst AIRUB, Fac Phys & Astron, Univ Str 150, D-44801 Bochum, Germany

[14] Max Planck Inst Radioastron, Auf dem Hugel 69, D-53121 Bonn, Germany

[15] Ohio State Univ, Dept Astron, 140 West 18th Ave, Columbus, OH 43210 USA

[16] Ctr Cosmol & Astroparticle Phys, 191 West Woodruff Ave, Columbus, OH 43210 USA

[17] South African Astron Observ SAAO, POB 9, ZA-7935 Cape Town, South Africa

[18] Southern African Larger Telescope SALT, POB 9, ZA-7935 Cape Town, South Africa

[19] Univ Durham, Inst Computat Cosmol, Dept Phys, South Rd, Durham DH1 3LE, England

[20] Univ Durham, Ctr Extragalact Astron, Dept Phys, South Rd, Durham DH1 3LE, England

[21] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[22] CSIC, Inst Astrofis Andalucia, Glorieta Astron S-N, Granada 18008, Spain

[23] CSIRO Space & Astron, POB 1130, Bentley, WA 6102, Australia

[24] Univ Ouaga I Pr Joseph Ki Zerbo ODAUO, Observ Astrophys, Lab Phys & Chim Environm, 03 BP 7021, Ouaga, Burkina Faso

[25] Sorbonne Univ, Univ PSL, Coll France, Observ Paris,CNRS,LERMA, Paris, France

[26] Univ Hertfordshire, Ctr Astrophys Res, Coll Lane, Hatfield AL10 9AB, England

[27] Univ Hull, EA Milne Ctr Astrophys, Kingston Upon Hull HU6 7RX, England

[28] Rhodes Univ, Dept Phys & Elect, POB 94, ZA-6140 Makhanda, South Africa

[29] CSIRO Astron & Space Sci, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia

[30] Western Sydney Univ, Locked Bag 1797, Penrith, NSW 1797, Australia

[31] Case Western Reserve Univ, Dept Astron, 10900 Euclid Ave, Cleveland, OH 44106 USA

[32] Royal Mil Coll Canada, Dept Phys & Space Sci, POB 17000,Stn Forces, Kingston, ON K7K 7B4, Canada

[33] Queens Univ, Dept Phys Engn Phys & Astron, Kingston, ON K7L 3N6, Canada

[34] Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany

[35] Univ Wisconsin Madison, Dept Astron, 475 N Charter St, Madison, WI 53706 USA

[36] Univ Manchester, Jodrell Bank Ctr Astrophys, Sch Phys & Astron, Oxford Rd, Manchester M13 9PL, England

[37] Univ Western Cape, Dept Phys & Astron, Robert Sobukwe Rd, ZA-7535 Bellville, South Africa

[38] Univ Cape Town, Interuniv Inst Data Intens Astron IDIA, Private Bag X3, ZA-7701 Rondebosch, South Africa

[39] Natl Radio Astron Observ, POB O, Socorro, NM 87801 USA

[40] 1 Univ New Mexico, Dept Phys & Astron, MSC07 4220, Albuquerque, NM 87131 USA

[41] North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa

[42] Virginia Polytech Inst & State Univ, Dept Phys, 50 West Campus Dr, Blacksburg, VA 24061 USA

[43] Univ Witwatersrand, Wits Ctr Astrophys, Sch Phys, 1 Jan Smuts Ave, ZA-2000 Johannesburg, South Africa

[44] Sejong Univ, Dept Phys & Astron, Seoul 05006, South Korea

[45] NASA Headquarters, 300 Hidden Figures Way,SE,Mary W Jackson NASA HQ B, Washington, DC 20546 USA

[46] Cardiff Univ, Sch Phys & Astron, Queens Bldg, Cardiff CF24 3AA, Wales

[47] Rutgers State Univ, Dept Phys & Astron, 136 Frelinghuysen Rd, Piscataway, NJ 08854 USA

[48] Univ Manchester, Dept Phys & Astron, Manchester M13 9PL, England

[49] Macquarie Univ, Sch Math & Phys Sci, Balaclava Rd, Sydney, NSW 2109, Australia

来源：

ASTRONOMY & ASTROPHYSICS | 2024年 / 688卷

基金：

英国科学技术设施理事会; 欧洲研究理事会; 芬兰科学院; 美国国家科学基金会; 美国国家航空航天局; 加拿大自然科学与工程研究理事会; 新加坡国家研究基金会;

关键词：

galaxies: dwarf; galaxies: evolution; galaxies: ISM; galaxies: spiral; radio lines: galaxies; MOLECULAR GAS PROPERTIES; STAR-FORMATION; NEUTRAL HYDROGEN; AMIGA SAMPLE; COLD GAS; DEPLETION TIME; ALPHA SURVEY; DARK-MATTER; LOCAL GROUP; ACCRETION;

D O I：

10.1051/0004-6361/202348297

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The MHONGOOSE (MeerKAT H I Observations of Nearby Galactic Objects: Observing Southern Emitters) survey maps the distribution and kinematics of the neutral atomic hydrogen (H I) gas in and around 30 nearby star-forming spiral and dwarf galaxies to extremely low H I column densities. The H I column density sensitivity (3 sigma over 16 km s(-1)) ranges from similar to 5 x 10(17) cm(-2) at 90 '' resolution to similar to 4 x 10(19) cm(-2) at the highest resolution of 7 ''. The H I mass sensitivity (3 sigma over 50 km s(-1)) is similar to 5.5 x 10(5) M-circle dot at a distance of 10 Mpc (the median distance of the sample galaxies). The velocity resolution of the data is 1.4 km s(-1). One of the main science goals of the survey is the detection of cold accreting gas in the outskirts of the sample galaxies. The sample was selected to cover a range in H I masses from 10(7) M-circle dot to almost 10(11) M-circle dot in order to optimally sample possible accretion scenarios and environments. The distance to the sample galaxies ranges from 3 to 23 Mpc. In this paper, we present the sample selection, survey design, and observation and reduction procedures. We compared the integrated H I fluxes based on the MeerKAT data with those derived from single-dish measurement and find good agreement, indicating that our MeerKAT observations are recovering all flux. We present H I moment maps of the entire sample based on the first ten percent of the survey data, and find that a comparison of the zeroth- and second-moment values shows a clear separation in the physical properties of the H I between areas with star formation and areas without related to the formation of a cold neutral medium. Finally, we give an overview of the H I-detected companion and satellite galaxies in the 30 fields, five of which have not previously been cataloged. We find a clear relation between the number of companion galaxies and the mass of the main target galaxy.

引用

页数：34

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