J/ApJS/281/66ivo://CDS.VizieR/J/ApJS/281/66CDSCheng C.Huang J.-S.Du W.Zhang H.-X.Zhang C.-P.Zhu M.,Orellana G.2026-08-20T12:58:04Z2026-08-20T13:25:15ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frdwarf-galaxiesh-i-line-emissionsurveysredshiftedphotometryvisible-astronomygalaxy-radiiWe present a sample of low HI mass (M_HI_<10^8^M_{sun}_) dwarf galaxies detected by The FAST All Sky HI Survey (FASHI) project. Due to the faint and irregular morphology of these galaxies, the default photometry is often inaccurate. Therefore, we utilized The Dark Energy Camera Legacy Survey data to perform careful photometric measurements, and find that the low HI mass galaxies have similar stellar mass densities to dwarf elliptical galaxies. Compared to other dwarf galaxy populations, the HI-selected dwarfs exhibit higher stellar mass densities than ultradiffuse galaxies, and similar densities to HI-selected low-surface-brightness galaxies, albeit with lower stellar masses, suggesting a possible evolutionary connection among these populations. By classifying the galaxies according to their HI spectral-line profiles, we show that the double-peaked sources conform closely to the Tully-Fisher relation, whereas the single-peaked sources follow the Faber-Jackson relation but with large scatter. This indicates that the single-peaked systems are likely dispersion dominated and that the relationship between stellar mass and halo mass in such systems may remain consistent across both low- and high- mass regimes. These findings suggest that HI-selected dwarf galaxies with single-peaked HI profiles may share a similar dynamical state with massive ellipticals, offering new insights into their structural evolution and the diversity of formation pathways for low-mass galaxies.2025ApJS..281...66Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/281/66CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/292 : DESI Legacy Imaging Surveys DR8 photometric redshifts (Duncan, 2022)J/A+A/324/877 : HI data for spiral and irregular galaxies (Broeils+, 1997)J/A+AS/127/409 : Nearby dwarf galaxy candidates list (Karachentseva+ 1998)J/A+A/377/801 : Fourth list of the Karachentsev catalog (Huchtmeier+, 2001)J/ApJS/153/223 : ACS Virgo Cluster Survey. I. (Cote+, 2004)J/ApJS/161/304 : Star clusters in the MW and satellites (McLaughlin+, 2005)J/ApJS/164/334 : ACS Virgo Cluster Survey. VI (Ferrarese+, 2006)J/AJ/136/2782 : Star formation efficiency in nearby galaxies (Leroy+, 2008)J/A+A/486/697 : Hydra I Cluster Catalogue (HCC) (Misgeld+, 2008)J/AJ/138/1037 : Star formation in Centaurus A Group dwarfs (Cote+ 2009)J/ApJS/180/54 : Gcl candidates in ACS Virgo survey. (Jordan+, 2009)J/ApJS/182/216 : Surface photometry of Virgo ellipticals (Kormendy+, 2009)J/A+A/496/683 : Early-type gal. in the Centaurus cluster (Misgeld+, 2009)J/MNRAS/413/971 : Galaxy And Mass Assembly (GAMA) DR1 (Driver+, 2011)J/MNRAS/414/3699 : Study of hot stellar systems and galaxies (Misgeld+, 2011)J/AJ/143/133 : Dwarf galaxies from the ALFALFA survey (Huang+, 2012)J/ApJS/203/24 : Structural param. of gal. in CANDELS (van der Wel+, 2012)J/MNRAS/452/2087 : Galaxy And Mass Assembly (GAMA): DR2 (Liske+, 2015)J/A+A/587/L3 : HI datacubes if Pisces A and B (Carignan+, 2016)J/AJ/152/157 : Mass models for 175 disk galaxies with SPARC (Lelli+, 2016)J/ApJ/816/L14 : Tully-Fisher relation in disk gal. from SPARC (Lelli+, 2016)J/AJ/152/50 : Cosmicflows-3 catalog (CF3) (Tully+, 2016)J/MNRAS/460/2143 : HI size-mass relation of galaxies (Wang+, 2016)J/AJ/153/6 : Tully-Fisher relation for dwarf gal. (Karachentsev+, 2017)J/ApJ/842/133 : HI-bearing ultra-diffuse ALFALFA galaxies (Leisman+, 2017)J/ApJ/847/38 : Extreme emission line galaxies at z<~0.05 (Yang+, 2017)J/MNRAS/474/3875 : Galaxy And Mass Assembly (GAMA): DR3 (Baldry+, 2018)J/MNRAS/475/788 : GAMA blue spheroids within 87 Mpc (Mahajan+, 2018)J/MNRAS/483/1754 : ALFALFA Low Surface Brightness Galaxy catalogue (Du+, 2019)J/AJ/157/81 : The Arecibo PPS Survey. I. ALFALFA (O'Donoghue+, 2019)J/ApJ/877/103 : Half-mass radii for galaxies at 1.0<=z<=2.5 (Suess+, 2019)J/ApJS/248/33 : Edge-on HI-rich LSB galaxies from ALFALFA (He+, 2020)J/ApJ/902/39 : GBT HI obs. of ultradiffuse galaxies (Karunakaran+, 2020)J/ApJS/250/17 : NGVS. XXXIV. Ultracompact dwarf gal. in Virgo (Liu+, 2020)J/MNRAS/493/87 : 1005 galaxies with z<0.09 sample (Trujillo+, 2020)J/ApJS/256/4 : Catalogue of galaxies observed with Hectospec (Cheng+, 2021)J/ApJ/915/70 : WALLABY pilot survey: HI gas in Hydra cluster (Wang+, 2021)J/MNRAS/513/439 : GAMA DR4 spectrum catalog (Driver+, 2022)J/A+A/657/A56 : MeerKAT Galaxy Cluster Legacy Survey DR1 (Knowles+, 2022)J/A+A/659/A14 : HI observations of the MATLAS dwarfs (Poulain+, 2022)J/ApJS/261/21 : HI emission line profile of ALFALFA nearby gal. (Yu+, 2022)J/ApJ/943/177 : HETDEX Public Sources (Version 3.2) (Mentuch Cooper+, 2023)J/ApJS/269/3 : Siena Galaxy Atlas 2020 (SGA-2020) (Moustakas+, 2023)J/ApJS/265/57 : Early-type dwarf gal. in the local universe (Paudel+, 2023)J/ApJ/944/94 : Cosmicflows-4 (Tully+, 2023)J/A+A/681/A15 : Nube dark galaxy HiPERCAM urgiz images (Montes+, 2024)J/other/SCPMA/67.19511 : The FAST all sky H I survey (FASHI) (Zhang+, 2024)J/ApJS/279/38 : Dark galaxy cand. from ALFALFA & DESI images (Kwon+, 2025)http://www.legacysurvey.org/dr9/ : DECaLS DR9 home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/281/66https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/281/66http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/281/66https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/281/66https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/281/66http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/281/66GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/281/66/table1 (Catalog of optical counterparts for the low HI mass sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/281/66/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/281/66/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/281/66/table1?GETtext/xml+votable180.050000true171.931667-4.9251390.0055555555555555565/7159 6/2166 2242 4958 4975 5037 5039 5076 5084 5091 5094 5097 5116 5233 5241 5244-5245 5270 5291 5295 5326 5338-5339 5346 5360 5400 5415 5419 5425-5426 5472 5474 5545 5633 5635 5641 5644 5654 5681 5685 5687 5725-5726 5733 5754 5781 5793 5798 5825 5842 5854 5866-5867 5876 5890 5903 5905 5918 5928 5938-5939 5942 5948 6011-6013 6021 6034 6043 6047 6057 6070-6071 6087 6090 6092 6105 6121 6238 6269 6366 6399 6416 6419 6488 6605 6619 6916 6932 6946 6948 7005 7065 7131 7182 7189 7216 7234 7244 7262 7265 7318 7339 7353 7378 7384-7385 7409 7435 7440 7445 7464 7498 7717 7725 9053 9085 9118 9150 9623 9806 9829 9846 9851 9981 10126 10154 10348 10350-10351 10363 10398 10429 10435 10453-10454 10468 10470 10473 10475 10479 10490 10523 10534 10538 10542 10551 10557-10558 10567 10585 10603 10623 10627 10637 10656 10659 10671 10698-10699 10712 10715 10717 10722 10727 10738 10743 10745 10758 10761 10767-10768 10774 10784 10793 10799 10808-10810 10840 10849 10853 10863 10881 10883 10889 10895 10899 10905 10908 10912 10920-10921 10929 10931-10932 10934 10937 10940 10945 10959 10961 10965 10971 10976 10979 10982 10984-10985 10997 11000 11005 11009 11013-11014 11031 11037 11041 11043 11045 11064 11072 11074 11084 11097 11099 11169 11172 11176-11177 11180 11239 11326 11386 11417 11433 11435 11442 11444 11449-11450 11487 11489 11492 11567 11777 11790-11791 11795 11813 11824 11832 13398 13513 13576 17637 17648 17735 17748 17750 17993 20419 21864 22748 22767 23095 23113 23173 25558 25582 25585 25592 25726 25902 25911 25913 25916 25954 26130 26132 26134 26138 26157 26184 26187 26259 26273 26900 26902 26951 26962 27024 27040 27155 27186 27198-27199 27206 28526 28528 28537 28540 28543 28594 28603 28606 28608 28620 28628 28663 36844 36850 40941 45054-45055https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/281/66?format=asciiOpticalRadiodefaultJ/ApJS/281/66/table1Catalog of optical counterparts for the low HI mass samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFASHI[1206/142538] The FASHI identifier (the ID has been substracted by 20230000000 from the FASHI cat. (Zhang+, 2024, J/other/SCPMA/67.19511))meta.id;meta.mainintRAJ2000Optical counterpart hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Optical counterpart degree of Declination (J2000)pos.eq.dec;meta.maincz[200/4448] Optical heliocentric velocity; =c*zkm/sspect.dopplerVeloc.opt;pos.heliocentricintrmag[12.8/21.1] Apparent DECALS r band AB magnitudemagphot.mag;em.opt.Rfloate_rmag[0.0003/0.1] Uncertainty in rmagmagstat.error;phot.mag;em.opt.Rfloatgmag[13.1/21.5] Apparent DECALS g band AB magnitudemagphot.mag;em.opt.Bfloate_gmag[0.0002/0.1] Uncertainty in gmagmagstat.error;phot.mag;em.opt.BfloatRe[1.9/29.2] Effective radiusarcsecphys.angSizefloatFlagHI profile flag (1)meta.codecharDR8Display data from DESI Legacy Imaging Surveys DR8 (VII/292) within 2"meta.ref.urlchar