A nuclear spiral in a dusty star-forming galaxy at z=2.78

被引：1

作者：

Stacey, H. R. ^{[1
]}

Kaasinen, M. ^{[1
]}

O'Riordan, C. M. ^{[2
]}

Mckean, J. P. ^{[3
,4
,5
]}

Powell, D. M. ^{[2
]}

Rizzo, F. ^{[3
]}

机构：

[1] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany

[2] Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85748 Garching, Germany

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

[4] South African Radio Astron Observ SARAO, POB 443, ZA-1740 Krugersdorp, South Africa

[5] Univ Pretoria, Dept Phys, Lynnwood Rd, ZA-0083 Hatfield, Pretoria, South Africa

来源：

ASTRONOMY & ASTROPHYSICS | 2025年 / 693卷

基金：

新加坡国家研究基金会;

关键词：

gravitational lensing: strong; galaxies: evolution; galaxies: formation; galaxies: high-redshift; galaxies: structure; submillimeter: galaxies; MOLECULAR GAS; ALMA OBSERVATIONS; BILLION YEARS; BARS; KINEMATICS; REVEALS; ARMS; SIMULATIONS; TURBULENCE; FEEDBACK;

D O I：

10.1051/0004-6361/202452518

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The nuclear structure of dusty star-forming galaxies is largely unexplored but harbours critical information about their structural evolution. Here, we present long-baseline Atacama Large (sub-)Millimetre Array (ALMA) continuum observations of a gravitationally lensed dusty star-forming galaxy at z = 2.78. We use a pixellated lens modelling analysis to reconstruct the rest-frame 230 mu m dust emission with a mean resolution of approximate to 55 pc and demonstrate that the inferred source properties are robust to changes in lens modelling methodology. The central 1 kpc is characterised by an exponential profile, a dual spiral arm morphology and an apparent super-Eddington compact central starburst. We find tentative evidence for a nuclear bar in the central 300 pc. These features may indicate that secular dynamical processes play a role in accumulating a high concentration of cold gas that fuels the rapid formation of a compact stellar spheroid and black hole accretion. We propose that the high spatial resolution provided by long-baseline ALMA observations and strong gravitational lensing will give key insights into the formation mechanisms of massive galaxies.

引用

页数：5

共 72 条

[1] Planck 2018 results: V. CMB power spectra and likelihoods [J].

Aghanim, N. ;

Akrami, Y. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Benabed, K. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carron, J. ;

Casaponsa, B. ;

Challinor, A. ;

Chiang, H. C. ;

Colombo, L. P. L. ;

Combet, C. ;

Crill, B. P. ;

Cuttaia, F. ;

de Bernardis, P. ;

de Rosa, A. ;

de Zotti, G. ;

Delabrouille, J. ;

Delouis, J. -M. ;

Di Valentino, E. ;

Diego, J. M. ;

Dore, O. ;

Douspis, M. ;

Ducout, A. ;

Dupac, X. ;

Dusini, S. ;

Efstathiou, G. ;

Elsner, F. ;

Ensslin, T. A. ;

Eriksen, H. K. ;

Fantaye, Y. ;

Fernandez-Cobos, R. .

ASTRONOMY & ASTROPHYSICS, 2020, 641

[2] From kpcs to the central parsec of NGC 1097: feeding star formation and a black hole at the same time [J].

Almudena Prieto, M. ;

Fernandez-Ontiveros, Juan A. ;

Bruzual, Gustavo ;

Burkert, Andreas ;

Schartmann, Marc ;

Charlot, Stephan .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 485 (03) :3264-3276

[3]

Amvrosiadis A, 2024, Arxiv, DOI arXiv:2404.01918

[4] Cosmological Simulations of Quasar Fueling to Subparsec Scales Using Lagrangian Hyper-refinement [J].

Angles-Alcazar, Daniel ;

Quataert, Eliot ;

Hopkins, Philip F. ;

Somerville, Rachel S. ;

Hayward, Christopher C. ;

Faucher-Giguere, Claude-Andre ;

Bryan, Greg L. ;

Keres, Dusan ;

Hernquist, Lars ;

Stone, James M. .

ASTROPHYSICAL JOURNAL, 2021, 917 (02) :917-953

[5] ALMA captures feeding and feedback from the active galactic nucleus in NGC 613 [J].

Audibert, A. ;

Combes, F. ;

Garcia-Burillo, S. ;

Hunt, L. ;

Eckart, A. ;

Aalto, S. ;

Casasola, V. ;

Boone, F. ;

Krips, M. ;

Viti, S. ;

Muller, S. ;

Dasyra, K. ;

van der Werf, P. ;

Martin, S. .

ASTRONOMY & ASTROPHYSICS, 2019, 632

[6] A 33GHz Survey of Local Major Mergers: Estimating the Sizes of the Energetically Dominant Regions from High-resolution Measurements of the Radio Continuum [J].

Barcos-Munoz, L. ;

Leroy, A. K. ;

Evans, A. S. ;

Condon, J. ;

Privon, G. C. ;

Thompson, T. A. ;

Armus, L. ;

Diaz-Santos, T. ;

Mazzarella, J. M. ;

Meier, D. S. ;

Momjian, E. ;

Murphy, E. J. ;

Ott, J. ;

Sanders, D. B. ;

Schinnerer, E. ;

Stierwalt, S. ;

Surace, J. A. ;

Walter, F. .

ASTROPHYSICAL JOURNAL, 2017, 843 (02)

[7] SPT 0538-50: PHYSICAL CONDITIONS IN THE INTERSTELLAR MEDIUM OF A STRONGLY LENSED DUSTY STAR-FORMING GALAXY AT z=2.8 [J].

Bothwell, M. S. ;

Aguirre, J. E. ;

Chapman, S. C. ;

Marrone, D. P. ;

Vieira, J. D. ;

Ashby, M. L. N. ;

Aravena, M. ;

Benson, B. A. ;

Bock, J. J. ;

Bradford, C. M. ;

Brodwin, M. ;

Carlstrom, J. E. ;

Crawford, T. M. ;

De Breuck, C. ;

Downes, T. P. ;

Fassnacht, C. D. ;

Gonzalez, A. H. ;

Greve, T. R. ;

Gullberg, B. ;

Hezaveh, Y. ;

Holder, G. P. ;

Holzapfel, W. L. ;

Ibar, E. ;

Ivison, R. ;

Kamenetzky, J. ;

Keisler, R. ;

Lupu, R. E. ;

Ma, J. ;

Malkan, M. ;

McIntyre, V. ;

Murphy, E. J. ;

Nguyen, H. T. ;

Reichardt, C. L. ;

Rosenman, M. ;

Spilker, J. S. ;

Stalder, B. ;

Stark, A. A. ;

Strandet, M. ;

Vernet, J. ;

Weiss, A. ;

Welikala, N. .

ASTROPHYSICAL JOURNAL, 2013, 779 (01)

[8] METRIC CHARACTERISTICS OF NUCLEAR RINGS AND RELATED FEATURES IN SPIRAL GALAXIES [J].

BUTA, R ;

CROCKER, DA .

ASTRONOMICAL JOURNAL, 1993, 105 (04) :1344-1357

[9] Dusty star-forming galaxies at high redshift [J].

Casey, Caitlin M. ;

Narayanan, Desika ;

Cooray, Asantha .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2014, 541 (02) :45-161

[10] ALMA observations of feeding and feedback in nearby Seyfert galaxies: an AGN-driven outflow in NGC 1433 [J].

Combes, F. ;

Garcia-Burillo, S. ;

Casasola, V. ;

Hunt, L. ;

Krips, M. ;

Baker, A. J. ;

Boone, F. ;

Eckart, A. ;

Marquez, I. ;

Neri, R. ;

Schinnerer, E. ;

Tacconi, L. J. .

ASTRONOMY & ASTROPHYSICS, 2013, 558

← 1 2 3 4 5 6 7 8 →