HJ
Helmut Jerjen
astro-ph.GAastro-phastro-ph.SRastro-ph.COastro-ph.HEgr-qc
On Valency
published · living versionsW_hqafjx2w·v1 · currentpublished
The Invisibles: A Detection Algorithm to Trace the Faintest Milky Way Satellites
with Shane Walsh, Beth Willman
1 version
W_ncmpswa4·v1published
Preprints & journals
116 papers in the corpus · 1997–2026A combined HST and JWST analysis of the stellar population in Draco II2610.28738v1 · Axelle C. Raffin, Giacomo Cordoni, Helmut Jerjen et al.2026 · 0 citationsarXivon Valency
The Delegate Survey: KOALA/AAOmega-IFU spectroscopy of three nearby dwarf galaxies2609.18319v1 · Kyungdo Ko, Helmut Jerjen, Sarah M. Sweet et al.2026 · 0 citationsarXiv
The Large Magellanic Cloud through the lens of the James Webb Space Telescope: Binaries and the mass function in the galaxy's outskirts2607.19260v1 · M.V. Legnardi, F. Muratore, A.P. Milone et al.2026 · 0 citationsarXiv
Detectability of Satellite Planes in Mock Observations of Isolated L* Galaxies2602.20447v1 · Ethan Crosby, Marcel S. Pawlowski, Oliver Muller et al.2026 · 1 citationarXiv
Rubin Data Preview 1: Extending the View of Unresolved Binary Stars in 47 Tucanae2509.04054v1 · Giacomo Cordoni, Luca Casagrande, Helmut Jerjen2025 · 4 citationsPubl. Astron. Soc. Aust. 42 (2025) e127
The coherent satellite velocity field around the interacting spiral galaxy pair NGC5713/19: signature of two galaxy groups merging2507.18912v1 · Helmut Jerjen, Simon Deeley, Holger Baumgardt et al.2025 · 2 citationsarXiv
New dwarf galaxy candidates in the M106, NGC3521, and UGCA127 groups with the Hyper Suprime Camera2504.11608v1 · Oliver Muller, Helmut Jerjen, Salvatore Taibi et al.2025 · 1 citationarXiv
IFUM Integrated Field Spectroscopy of Ten M104 Satellite Galaxy Candidates2412.02060v1 · Ethan Crosby, Mario Mateo, Ivanna Escala et al.2024 · 3 citationsarXiv
On the origin of the Hercules group: I. chemical signatures indicating the outer bar origin2411.19085v2 · Yusen Li, Kenneth Freeman, Helmut Jerjen et al.2024 · 3 citationsarXiv
On the origin of the Hercules group: II. the Trojan quasi-periodic identity on the orbital level2411.19097v2 · Yusen Li, Kenneth Freeman, Helmut Jerjen2024 · 4 citationsarXiv
Lopsided distribution of MATLAS and ELVES dwarf satellite systems around isolated host galaxies2406.11684v1 · Nick Heesters, Helmut Jerjen, Oliver Muller et al.2024 · 6 citationsA&A 690, A110 (2024)
New dwarf galaxy candidates in the sphere of influence of the Sombrero galaxy2312.03486v1 · Ethan Crosby, Helmut Jerjen, Oliver Muller et al.2023 · 11 citationsarXiv
The metallicity variations along the chromosome maps: The Globular Cluster 47 Tucanae2311.01871v1 · A. F. Marino, A. P. Milone, E. Dondoglio et al.2023 · 17 citationsarXiv
New dwarf galaxy candidates in the sphere of influence of the Local Volume spiral galaxy NGC26832303.03718v1 · E. Crosby, H. Jerjen, O. Muller et al.2023 · 12 citationsarXiv
Is there a dwarf galaxy satellite-of-satellite problem in CDM?2303.03025v1 · Oliver Muller, Nick Heesters, Helmut Jerjen et al.2023 · 4 citationsA&A 673, A160 (2023)
The chemical compositions of multiple stellar populations in the globular cluster NGC 28082212.01319v1 · M. Carlos, A. F. Marino, A. P. Milone et al.2022 · 10 citationsarXiv
Detailed chemical abundances of stars in the outskirts of the Tucana II ultra-faint dwarf galaxy2205.01740v2 · Anirudh Chiti, Anna Frebel, Alexander P. Ji et al.2022 · 32 citationsarXiv
The Cen A galaxy group: dynamical mass and missing baryons2111.10306v2 · Oliver Muller, Federico Lelli, Benoit Famaey et al.2021 · 17 citationsA&A 662, A57 (2022)
Spectroscopy and photometry of the least-massive Type-II globular clusters: NGC1261 AND NGC69342106.15978v1 · A. F. Marino, A. P. Milone, A. Renzini et al.2021 · 27 citationsarXiv
An extended halo around an ancient dwarf galaxy2012.02309v2 · Anirudh Chiti, Anna Frebel, Joshua D. Simon et al.2020 · 82 citationsarXiv
The properties of dwarf spheroidal galaxies in the Cen A group: Stellar populations, internal dynamics, and a heart-shaped Halpha ring2011.04990v1 · Oliver Muller, Katja Fahrion, Marina Rejkuba et al.2020 · 28 citationsarXiv
Stellar metallicities from SkyMapper photometry I: A study of the Tucana II ultra-faint dwarf galaxy2001.07684v1 · Anirudh Chiti, Anna Frebel, Helmut Jerjen et al.2020 · 40 citationsarXiv
Metal-poor nuclear star clusters in two dwarf galaxies near Centaurus A suggesting formation from the in-spiraling of globular clusters2001.02241v1 · Katja Fahrion, Oliver Muller, Marina Rejkuba et al.2020 · 51 citationsA&A 634, A53 (2020)
Multiple populations in globular clusters and their parent galaxies1910.09683v1 · A. P. Milone, A. F. Marino, G. S. Da Costa et al.2019 · 101 citationsarXiv
The dwarf galaxy satellite system of Centaurus A1907.02012v2 · Oliver Muller, Marina Rejkuba, Marcel S. Pawlowski et al.2019 · 82 citationsA&A 629, A18 (2019)
On the Nature of Ultra-faint Dwarf Galaxy Candidates. III. Horologium I, Pictor I, Grus I, and Phoenix II1809.02259v1 · Helmut Jerjen, Blair Conn, Dongwon Kim et al.2018 · 7 citationsarXiv
The disk averaged star formation relation for Local Volume dwarf galaxies1805.05003v1 · A. Lopez-Sanchez, C.D.P. Lagos, T. Young et al.2018 · 5 citationsarXiv
Metallicity variations in the Type II globular cluster NGC69341804.04158v1 · A. F. Marino, D. Yong, A. P. Milone et al.2018 · 38 citationsarXiv
On The Nature of ultra-faint Dwarf Galaxy Candidates II: The case of Cetus II1803.04563v1 · Blair C. Conn, Helmut Jerjen, Dongwon Kim et al.2018 · 20 citationsarXiv
Chemical Abundances of new member stars in the Tucana II dwarf galaxy1803.01808v2 · Anirudh Chiti, Anna Frebel, Alexander P. Ji et al.2018 · 63 citationsarXiv
Multiple stellar populations in Magellanic Cloud clusters. VI. A survey of multiple sequences and Be stars in young clusters1802.10538v1 · A. P. Milone, A. F. Marino, M. Di Criscienzo et al.2018 · 125 citationsarXiv
A whirling plane of satellite galaxies around Centaurus A challenges cold dark matter cosmology.29420285 · Müller, Oliver, Pawlowski, Marcel S, Jerjen, Helmut et al.2018 · 187 citationsScience (New York, N.Y.). 2018;359(6375):534-537
On the nature of ultra-faint dwarf galaxy candidates I: DES1, Eridanus III and Tucana V1712.01439v2 · Blair C. Conn, Helmut Jerjen, Dongwon Kim et al.2017 · 56 citationsarXiv
Photometry and spectroscopy of multiple populations along the AGB of NGC2808 and NGC6121 (M4)1706.02278v1 · A. F. Marino, A. P. Milone, D. Yong et al.2017 · 50 citationsarXiv
Tidal tails around the outer halo globular clusters Eridanus and Palomar 151704.07690v1 · G.C. Myeong, Helmut Jerjen, Dougal Mackey et al.2017 · 53 citationsThe Astrophysical Journal Letters, 840:L25 (6pp), 2017 May 10
The M101 group complex: new dwarf galaxy candidates and spatial structure1701.03681v2 · Oliver Muller, Roberto Scalera, Bruno Binggeli et al.2017 · 85 citationsA&A 602, A119 (2017)
Multiple stellar populations in Magellanic Cloud clusters. V. The split main sequence of the young cluster NGC18661611.06725v1 · A. P. Milone, A. F. Marino, F. D'Antona et al.2016 · 74 citationsarXiv
Large-scale filamentary structures around the Virgo cluster revisited1611.00437v1 · Suk Kim, Soo-Chang Rey, Martin Bureau et al.2016 · 58 citationsarXiv
Portrait of a Dark Horse: a Photometric and Spectroscopic Study of the Ultra-faint Milky Way Satellite Pegasus III1608.04934v2 · Dongwon Kim, Helmut Jerjen, Marla Geha et al.2016 · 46 citationsarXiv
Testing the two planes of satellites in the Centaurus Group1607.04024v3 · Oliver Muller, Helmut Jerjen, Marcel S. Pawlowski et al.2016 · 51 citationsA&A 595, A119 (2016)
Extended stellar substructure surrounding the Boötes I dwarf spheroidal galaxy1607.00447v1 · T. A. Roderick, A. D. Mackey, H. Jerjen et al.2016 · 24 citationsarXiv
New low surface brightness dwarf galaxies in the Centaurus group1605.04130v3 · Oliver Muller, Helmut Jerjen, Bruno Binggeli2016 · 71 citationsA&A 597, A7 (2017)
Structural analysis of the Sextans dwarf spheroidal galaxy1604.06214v1 · T A Roderick, H Jerjen, G S Da Costa et al.2016 · 31 citationsarXiv
Multiple stellar populations in Magellanic Cloud clusters. IV. The double main sequence of the young cluster NGC17551603.03493v1 · A. P. Milone, A. F. Marino, F. D'Antona et al.2016 · 87 citationsarXiv
Chemical abundances in the multiple sub-giant branch of 47 Tucanae: insights on its faint sub-giant branch component1603.02012v1 · A. F. Marino, A. P. Milone, L. Casagrande et al.2016 · 45 citationsarXiv
The Binary Populations of Eight Globular Clusters in the Outer Halo of the Milky Way1510.05086v1 · A. P. Milone, A. F. Marino, L. R. Bedin et al.2015 · 37 citationsarXiv
New dwarf galaxy candidates in the Centaurus group1509.04931v1 · Oliver Muller, Helmut Jerjen, Bruno Binggeli2015 · 66 citationsA&A 583, A79 (2015)
The new Milky Way satellites: alignment with the VPOS and predictions for proper motions and velocity dispersions1505.07465v2 · Marcel S. Pawlowski, Stacy S. McGaugh, Helmut Jerjen2015 · 90 citationsarXiv
Horologium II: a Second Ultra-faint Milky Way Satellite in the Horologium Constellation1505.04948v2 · Dongwon Kim, Helmut Jerjen2015 · 143 citationsarXiv
Multiple stellar populations in Magellanic Cloud clusters. III. The first evidence of an extended main sequence turn-off in a young cluster: NGC18561504.03252v1 · A. P. Milone, L. R. Bedin, G. Piotto et al.2015 · 87 citationsarXiv
Career total: at least 259 works. 116 are in this corpus.Showing the 50 most recent.
Profile built from the corpus for this byline.
Author records are still filling in while the Hub is in alpha. If this is your page, you'll be able to claim it soon. Spot a mistake? Tell us.