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Dark matter halos and scaling relations of extremely massive spiral galaxies from extended Hɪ rotation curves

Di Teodoro, Enrico M. and Posti, Lorenzo and Fall, S. Michael and Ogle, Patrick M. and Jarrett, Thomas and Appleton, Philip N. and Cluver, Michelle E. and Haynes, Martha P. and Lisenfeld, Ute (2023) Dark matter halos and scaling relations of extremely massive spiral galaxies from extended Hɪ rotation curves. Monthly Notices of the Royal Astronomical Society, 518 (4). pp. 6340-6354. ISSN 0035-8711. doi:10.1093/mnras/stac3424.

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We present new and archival atomic hydrogen (Hɪ) observations of 15 of the most massive spiral galaxies in the local Universe (⁠M_⋆ > 10¹¹ M_⊙). From 3D kinematic modeling of the datacubes, we derive extended H I rotation curves, and from these, we estimate masses of the dark matter halos and specific angular momenta of the discs. We confirm that massive spiral galaxies lie at the upper ends of the Tully–Fisher relation (mass vs velocity, M ∝ V⁴) and Fall relation (specific angular momentum vs mass, j ∝ M⁰·⁶), in both stellar and baryonic forms, with no significant deviations from single power laws. We study the connections between baryons and dark matter through the stellar (and baryon)-to-halo ratios of mass f_M ≡ M_(*)/M_(h) and specific angular momentum f⁠_j ≡ j_(⋆)/j_(h) and f_(j,bar) ≡ j_(bar)/j_(h). Combining our sample with others from the literature for less massive disc-dominated galaxies, we find that f_M rises monotonically with M_⋆ and M_h (instead of the inverted-U shaped f_M for spheroid-dominated galaxies), while f_(j,⋆) and f_(j,bar) are essentially constant near unity over four decades in mass. Our results indicate that disc galaxies constitute a self-similar population of objects closely linked to the self-similarity of their dark halos. This picture is reminiscent of early analytical models of galaxy formation wherein discs grow by relatively smooth and gradual inflow, isolated from disruptive events such as major mergers and strong active galactic nuclei feedback, in contrast to the more chaotic growth of spheroids.

Item Type:Article
Related URLs:
URLURL TypeDescription
Di Teodoro, Enrico M.0000-0003-4019-0673
Posti, Lorenzo0000-0001-9072-5213
Fall, S. Michael0000-0003-3323-9061
Ogle, Patrick M.0000-0002-3471-981X
Jarrett, Thomas0000-0002-4939-734X
Appleton, Philip N.0000-0002-7607-8766
Cluver, Michelle E.0000-0002-9871-6490
Haynes, Martha P.0000-0001-5334-5166
Lisenfeld, Ute0000-0002-9471-5423
Additional Information:The authors thank T. Oosterloo, K. Spekkens, and T. van der Hulst for providing reduced H I data of some archival galaxies. EMDT was supported by the US National Science Foundation under grant 1616177 and by the European Research Council (ERC) under grant agreement no. 101040751. LP acknowledges support from the ERC under the European Union Horizon 2020 research and innovation program (grant agreement No. 834148). MPH acknowledges support from NSF/AST-1714828 and grants from the Brinson Foundation. UL acknowledges support from project PID2020-114414GB-100, financed by MCIN/AEI/10.13039/501100011033, from project P20_00334 financed by the Junta de Andalucia, and from FEDER/Junta de Andalucía-Consejería de Transformación Económica, Industria, Conocimiento y Universidades/Proyecto A-FQM-510-UGR20. Data analysed in this work include multiband images from WISE, Legacy, and Pan-STARSS surveys and spectroscopic datacubes from MaNGA and CALIFA surveys. This research made use of Photutils, an ASTROPY package for detection and photometry of astronomical sources. This work relied on the NASA/IPAC Extragalactic Database, operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA. DATA AVAILABILITY. The data underlying this article will be shared on reasonable request to the corresponding author.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
European Research Council (ERC)101040751
European Research Council (ERC)834148
Brinson FoundationUNSPECIFIED
Ministerio de Ciencia e Innovación (MICINN)PID2020-114414GB-100
Ministerio de Ciencia e Innovación (MICINN)P20_00334
Ministerio de Ciencia e Innovación (MICINN)MCIN/AEI/10.13039/501100011033
Junta de AndaluciaA-FQM-510-UGR20
Issue or Number:4
Record Number:CaltechAUTHORS:20230203-893210800.42
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:119034
Deposited By: Research Services Depository
Deposited On:01 Mar 2023 01:58
Last Modified:01 Mar 2023 01:58

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