GH
George Helou
astro-ph.COastro-phastro-ph.GAastro-ph.HEastro-ph.IMastro-ph.SRastro-ph.EPcs.LGgr-qcphysics.space-ph
On Valency
published · living versionsW_9pvfmczt·v1 · currentpublished
Scientific Synergy Between LSST and Euclid
with Jason Rhodes, Robert C. Nichol, Éric Aubourg, Rachel Bean +32
1 version
W_7vcy7qrq·v1published
W_ydaubn7r·v1published
W_v55mn2yh·v1published
W_qzv76e44·v1published
W_j7n7m2qh·v1published
W_qyspfv45·v1published
W_jxmyk3mc·v1published
W_dnveg6af·v1published
W_dbvj8e2w·v1published
Preprints & journals
287 papers in the corpus · 1995–2026Now you see me, now you don't: Deep, long-lived obscuration events of white dwarfs by dust and debris from disintegrating planetesimals2609.08923v1 · J. van Roestel, S. Bhattacharjee, J. A. Guidry et al.2026 · 0 citationsarXiv
SN 2024afyu interpreted as a Pair Instability Supernova2609.07931v1 · P. J. Pessi, S. Barmentloo, Ł. Wyrzykowski et al.2026 · 0 citationsarXiv
A Type Ia Supernova Candidate at : A Transient Interloper in the Search for Galaxies2607.18972v1 · Seiji Toshikage, Takahiro Morishita, Masaomi Tanaka et al.2026 · 0 citationsarXiv
Multi-year Ground-Based Survey Photometry of Active Comet 103P/Hartley 2 and Centaur (2060) Chiron: A Tale of Two Comets in the Pre-LSST Era2606.30280v1 · Joseph Murtagh, Megan E. Schwamb, Michael S. P. Kelley et al.2026 · 0 citationsarXiv
Euclid Quick Data Release (Q2) -- The Euclid Galactic Bulge Survey2606.25883v1 · J.-P. Beaulieu, E. Bachelet, M. Gilles et al.2026 · 0 citationsarXiv
Constraints on Late-Time Flaring from Luminous Fast Blue Optical Transients using the Transiting Exoplanet Survey Satellite and the Zwicky Transient Facility2606.17129v1 · Rahul Jayaraman, Anna Y. Q. Ho, Michael M. Fausnaugh et al.2026 · 0 citationsarXiv
Euclid: Asteroid rotation periods from the Euclid Ecliptic Survey2604.25652v1 · B. Y. Irureta-Goyena, B. Altieri, J.-P. Kneib et al.2026 · 0 citationsarXiv
AT2024lhc and AT2024kmq in the landscape of featureless tidal disruption events2602.21624v1 · Yuhan Yao, Ryan Chornock, Andrew Mummery et al.2026 · 0 citationsMon Not R Astron Soc (2026)
BEACON: JWST NIRCam Pure-parallel Imaging Survey. IV. A Systematic Search for Galaxy Overdensities and Evidence for Gas Accretion Mode Transition2602.04333v2 · Ryo Albert Sutanto, Takahiro Morishita, Tadayuki Kodama et al.2026 · 1 citationarXiv
Multiwavelength Analysis of Six Luminous Fast Blue Optical Transients2601.18926v2 · Cassie Sevilla, Anna Y. Q. Ho, Nayana A.J. et al.2026 · 1 citationarXiv
BEACON: JWST NIRCam Pure-parallel Imaging Survey. II. Physical Properties of Galaxies2601.02861v1 · Yechi Zhang, Takahiro Morishita, Kimi C. Kreilgaard et al.2026 · 0 citationsarXiv
BOOM and Babamul: a real-time, multi-survey, optical alert broker system operating at scale2511.00164v2 · Theophile Jegou du Laz, Michael W. Coughlin, Peter Bachant et al.2025 · 6 citationsarXiv
ZTF25abjmnps (AT2025ulz) and S250818k: A Candidate Superkilonova from a Sub-threshold Sub-Solar Gravitational Wave Trigger2510.23732v2 · Mansi M. Kasliwal, Tomas Ahumada, Robert Stein et al.2025 · 0 citationsarXiv
Prediscovery Activity of New Interstellar Object 3I/ATLAS: A Dynamically-Old Comet?2509.08792v1 · Quanzhi Ye, Michael S. P. Kelley, Henry H. Hsieh et al.2025 · 0 citationsarXiv
Low-latency Forecasts of Kilonova Light Curves for Rubin and ZTF2507.11785v1 · Natalya Plestkova, Niharika Sravan, R. Weizmann Kiendrebeogo et al.2025 · 1 citationarXiv
Optically Overluminous Tidal Disruption Events: Outflow Properties and Implications for Extremely Relativistic Disruptions2507.06453v1 · Yuhan Yao, Kate D. Alexander, Wenbin Lu et al.2025 · 7 citationsarXiv
Eclipsing white dwarf from the Zwicky Transient Facility: II. Seven eclipsing double white dwarfs2505.15580v1 · J. van Roestel, K. Burdge, I. Caiazzo et al.2025 · 0 citationsarXiv
Deep learning to improve the discovery of near-Earth asteroids in the Zwicky Transient Facility2504.11918v2 · Bel'en Yu Irureta-Goyena, George Helou, Jean-Paul Kneib et al.2025 · 4 citationsPublications of the Astronomical Society of the Pacific, 137:054503 (13pp), 2025 May
QZO: A Catalog of 5 Million Quasars from the Zwicky Transient Facility2502.13054v2 · S. J. Nakoneczny, M. J. Graham, D. Stern et al.2025 · 4 citationsarXiv
Cyclotron emitting magnetic white dwarfs in post common envelope binaries discovered with the Zwicky Transient Facility2412.15153v1 · J. van Roestel, A.C. Rodriguez, P. Szkody et al.2024 · 10 citationsA&A 696, A242 (2025)
Bird's-eye View of Molecular Gas across Stephan's Quintet Galaxy Group and Intra-group Medium2411.14310v1 · B. H. C. Emonts, P. N. Appleton, U. Lisenfeld et al.2024 · 8 citationsarXiv
A case study of gas impacted by black-hole jets with the JWST: outflows, bow shocks, and high excitation of the gas in the galaxy IC50632406.03218v2 · K. M. Dasyra, G. F. Paraschos, F. Combes et al.2024 · 1 citationarXiv
ZTF SN~Ia DR2: Cosmology-independent constraints on Type Ia supernova standardisation from supernova siblings2406.01434v1 · S. Dhawan, E. Mortsell, J. Johansson et al.2024 · 4 citationsA&A 702, A190 (2025)
Euclid. I. Overview of the Euclid mission2405.13491v2 · Y. Mellier, Abdurro'uf, J. A. Acevedo Barroso et al.2024 · 622 citationsA&A 697, A1 (2025)
Searching for gravitational wave optical counterparts with the Zwicky Transient Facility: summary of O4a2405.12403v1 · Tom'as Ahumada, Shreya Anand, Michael W. Coughlin et al.2024 · 22 citationsarXiv
A 12.4-day periodicity in a close binary system after a supernova.38200292 · Chen, Ping, Gal-Yam, Avishay, Sollerman, Jesper et al.2024 · 37 citationsNature. 2024;625(7994):253-258
Annotated Coadds: Concise Metrics for Characterizing Survey Cadence and for Discovering Variable and Transient Sources2308.05252v1 · D. L. Shupe, F. J. Masci, R. Chary et al.2023 · 0 citationsarXiv
Completeness of the NASA/IPAC Extragalactic Database (NED) -- Local Volume Sample2306.06271v1 · D.O. Cook, J.M. Mazzarella, G. Helou et al.2023 · 32 citationsarXiv
Probing pre-supernova mass loss in double-peaked Type Ibc supernovae from the Zwicky Transient Facility2306.04698v3 · Kaustav K. Das, Mansi M. Kasliwal, Jesper Sollerman et al.2023 · 16 citationsarXiv
Orbital decay in an accreting and eclipsing 13.7 minute orbital period binary with a luminous donor2303.13573v1 · Kevin B. Burdge, Kareem El-Badry, Saul Rappaport et al.2023 · 17 citationsarXiv
Volumetric rates of Luminous Red Novae and Intermediate Luminosity Red Transients with the Zwicky Transient Facility2211.05141v1 · Viraj R. Karambelkar, Mansi M. Kasliwal, Nadejda Blagorodnova et al.2022 · 32 citationsarXiv
A light in the dark: searching for electromagnetic counterparts to black hole-black hole mergers in LIGO/Virgo O3 with the Zwicky Transient Facility2209.13004v1 · Matthew J. Graham, Barry McKernan, K. E. Saavik Ford et al.2022 · 89 citationsarXiv
Neutrino follow-up with the Zwicky Transient Facility: Results from the first 24 campaigns2203.17135v3 · Robert Stein, Simeon Reusch, Anna Franckowiak et al.2022 · 21 citationsMNRAS, 521, 4, 2023, 5046-5063
Illuminating Galaxy Evolution at Cosmic Noon with ISCEA: the Infrared Satellite for Cosmic Evolution Astrophysics2112.02387v1 · Yun Wang, Lee Armus, Andrew Benson et al.2021 · 0 citationsarXiv
Publisher Correction: A highly magnetized and rapidly rotating white dwarf as small as the Moon.34341546 · Caiazzo, Ilaria, Burdge, Kevin B, Fuller, James et al.2021 · 9 citationsNature. 2021;596(7873):E15
The structure and characteristic scales of the HI gas in galactic disks2107.13567v3 · Sami Dib, Jonathan Braine, Maheswar Gopinathan et al.2021 · 16 citationsA&A 655, A101 (2021)
A highly magnetized and rapidly rotating white dwarf as small as the Moon.34194021 · Caiazzo, Ilaria, Burdge, Kevin B, Fuller, James et al.2021 · 115 citationsNature. 2021;595(7865):39-42
Best Practices for Data Publication in the Astronomical Literature2106.01477v2 · Tracy X. Chen, Marion Schmitz, Joseph M. Mazzarella et al.2021 · 20 citationsarXiv
A Search for Extragalactic Fast Blue Optical Transients in ZTF and the Rate of AT2018cow-like Transients2105.08811v2 · Anna Y. Q. Ho, Daniel A. Perley, Avishay Gal-Yam et al.2021 · 123 citationsarXivon Valency
Joint Survey Processing I: Compact oddballs in the COSMOS field -- low-luminosity Quasars at z > 6?2103.09836v2 · Andreas L. Faisst, Ranga Ram Chary, Sergio Fajardo-Acosta et al.2021 · 11 citationsarXiv
Tails: Chasing Comets with the Zwicky Transient Facility and Deep Learning2102.13352v1 · Dmitry A. Duev, Bryce T. Bolin, Matthew J. Graham et al.2021 · 14 citationsarXiv
The Case for Thermalization as a Contributor to the [CII] Deficit2102.08865v1 · Jessica Sutter, Daniel A. Dale, Karin Sandstrom et al.2021 · 9 citationsarXiv
A systematic search of Zwicky Transient Facility data for ultracompact binary LISA-detectable gravitational-wave sources2009.02567v1 · Kevin B. Burdge, Thomas A. Prince, Jim Fuller et al.2020 · 116 citationsarXiv
Joint Survey Processing of Euclid, Rubin and Roman: Final Report2008.10663v1 · R. Chary, G. Helou, G. Brammer et al.2020 · 5 citationsarXiv
Planck intermediate results. LVII. Joint Planck LFI and HFI data processing2007.04997v1 · Y. Akrami, K. J. Andersen, M. Ashdown et al.2020 · 303 citationsA&A 643, A42 (2020)
Candidate Electromagnetic Counterpart to the Binary Black Hole Merger Gravitational-Wave Event S190521g.32639755 · Graham, M J, Ford, K E S, McKernan, B et al.2020 · 381 citationsPhysical review letters. 2020;124(25):251102
A tidal disruption event coincident with a high-energy neutrino2005.05340v2 · Robert Stein, Sjoert van Velzen, Marek Kowalski et al.2020 · 281 citationsNat Astron 5, 510-518 (2021)
The Koala: A Fast Blue Optical Transient with Luminous Radio Emission from a Starburst Dwarf Galaxy at 2003.01222v4 · Anna Y. Q. Ho, D. A. Perley S. R. Kulkarni, D. Z. J. Dong et al.2020 · 129 citationsarXivon Valency
The Case for Probe-class NASA Astrophysics Missions2002.12739v1 · Martin Elvis, Jon Arenberg, David Ballantyne et al.2020 · 0 citationsarXiv
A Twilight Search for Atiras, Vatiras and Co-orbital Asteroids: Preliminary Results1912.06109v1 · Quanzhi Ye, Frank J. Masci, Wing-Huen Ip et al.2019 · 32 citationsarXiv
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