CS
Caleb Scharf
astro-phastro-ph.EPExobiologyastro-ph.IMOrigin of LifePlanetsastro-ph.COastro-ph.SRLifeResearch
On Valency
published · living versionsW_s8arzm7q·v1 · currentpublished
The Fermi Paradox and the Aurora Effect: Exo-civilization Settlement, Expansion and Steady States
with Jonathan Carroll-Nellenback, Adam Frank, Jason Wright
1 version
Preprints & journals
48 papers in the corpus · 1993–2026Astrobiology in the Time of Artificial Intelligence.42322137 · Scharf, Caleb2026 · 1 citationAstrobiology. 2026;26(1_suppl):150S-155S
Foundation Models for Astrobiology: Paper I-Workshop and Overview.41369223 · Felton, Ryan, Scharf, Caleb, Bartlett, Stuart et al.2025 · 2 citationsAstrobiology. 2025;25(12):807-821
Communicating Discoveries in the Search for Life in the Universe Workshop Report.41163328 · Bimm, Jordan, Voytek, Mary, Scharf, Caleb et al.2025 · 2 citationsAstrobiology. 2025;25(11):743-758
The model is the message: Lightweight convolutional autoencoders applied to noisy imaging data for planetary science and astrobiology2507.11400v1 · Caleb Scharf2025 · 1 citationarXiv
Rebuilding the Habitable Zone from the Bottom up with Computational Zones.38853680 · Scharf, Caleb, Witkowski, Olaf2024 · 2 citationsAstrobiology. 2024;24(6):613-627
Exoplanet Diversity in the Era of Space-based Direct Imaging Missions1803.03812v1 · Ravi Kopparapu, Eric Hebrard, Rus Belikov et al.2018 · 0 citationsarXiv
Exoplanet science 2.0.29323328 · Scharf, Caleb, Fischer, Debra, Meadows, Victoria2018 · 0 citationsNature. 2018;553(7687):149-151
Bulk measurements of messy chemistries are needed for a theory of the origins of life.29133446 · Guttenberg, Nicholas, Virgo, Nathaniel, Chandru, Kuhan et al.2019 · 67 citationsPhilosophical transactions. Series A, Mathematical, physical, and engineering sciences. 2017;375(2109)
The Zoomable Universe.29565875 · Scharf, Caleb, Miller, Ron2019 · 1 citationScientific American. 2017;317(5):70-75
Quantifying the origins of life on a planetary scale.27382156 · Scharf, Caleb, Cronin, Leroy2017 · 48 citationsProceedings of the National Academy of Sciences of the United States of America. 2016;113(29):8127-32
Collaboration: Come together to study life's origins.26738585 · Scharf, Caleb, Virgo, Nathaniel, Cleaves, H James2016 · 1 citationNature. 2016;529(7584):25
A Strategy for Origins of Life Research.26684503 · Scharf, Caleb, Virgo, Nathaniel, Cleaves, H James et al.2016 · 65 citationsAstrobiology. 2015;15(12):1031-42
Cosmic (in)significance.25095473 · Scharf, Caleb2014 · 0 citationsScientific American. 2014;311(2):74-7
The WARPS Survey. VIII. Evolution of the Galaxy Cluster X-ray Luminosity Function1210.5282v2 · L. A. Koens, B. J. Maughan, L. R. Jones et al.2012 · 11 citationsarXiv
The benevolence of black holes.22844849 · Scharf, Caleb2012 · 7 citationsScientific American. 2012;307(2):34-9
Possible constraints on exoplanet magnetic field strengths from planet-star interaction1005.2929v1 · Caleb A. Scharf2010 · 85 citationsarXiv
Generalized Milankovitch Cycles and Longterm Climatic Habitability1002.4877v2 · David S. Spiegel, Sean N. Raymond, Courtney D. Dressing et al.2010 · 122 citationsarXiv
The Chandra Deep Protocluster Survey: Ly-alpha Blobs are powered by heating, not cooling0904.0452v3 · J. E. Geach, D. M. Alexander, B. D. Lehmer et al.2009 · 128 citationsAstrophys.J.700:1-9,2009
New Worlds: Evaluating terrestrial planets as astrophysical objects0902.2755v1 · Caleb A. Scharf (Columbia), David S. Spiegel, Mark Chandler (Columbia) et al.2009 · 0 citationsarXiv
Long period planets from dynamical relaxation0811.1981v2 · Caleb Scharf, Kristen Menou2008 · 74 citationsarXiv
The Chandra Deep Protocluster Survey: Evidence for an Enhancement in the AGN Activity in the SSA22 Protocluster at z = 3.090809.5058v1 · B. D. Lehmer, D. M. Alexander, J. E. Geach et al.2008 · 111 citationsAstrophys.J.691:687-695,2009
A low-redshift galaxy cluster X-ray Temperature Function incorporating Suzaku data0809.1065v1 · Cien Shang, Caleb Scharf2008 · 16 citationsAstrophys.J.690:879-890,2009
Habitable Climates: The Influence of Obliquity0807.4180v2 · David S. Spiegel, Kristen Menou, Caleb A. Scharf2008 · 164 citationsAstrophys.J.691:596-610,2009
Habitable Climates0711.4856v3 · David S. Spiegel, Kristen Menou, Caleb A. Scharf2007 · 97 citationsarXiv
Exoplanet Transit Parallaxastro-ph/0702749v1 · Caleb A. Scharf2007 · 44 citationsAstrophys.J.661:1218-1221,2007
A possible dearth of hot gas in galaxy groups at intermediate redshiftastro-ph/0611625v2 · David S. Spiegel, Frits Paerels, Caleb A. Scharf2006 · 8 citationsAstrophys.J.658:288-298,2007
The potential for tidally heated icy and temperate moons around exoplanetsastro-ph/0604413v2 · Caleb A. Scharf2006 · 75 citationsAstrophys.J.648:1196-1205,2006
The evolution of the cluster X-ray scaling relations in the WARPS sample at 0.6<z<1.0astro-ph/0503455v2 · B. J. Maughan (1, L. R. Jones, H. Ebeling et al.2005 · 104 citationsMon.Not.Roy.Astron.Soc. 365 (2006) 509-529
X-Ray Detection of an Obscured Active Galactic Nucleus in a z=3.09 Radio-quiet Ly-alpha Nebulaastro-ph/0410311v1 · Antara Basu-Zych, Caleb Scharf2004 · 53 citationsAstrophys.J. 615 (2004) L85-L88
On Detecting the X-ray Silhouette of a Damped Lyman alpha Systemastro-ph/0409516v2 · Mark Dijkstra, Zoltan Haiman, Caleb Scharf2004 · 4 citationsAstrophys.J. 624 (2005) 85-93
Chandra Detections of SCUBA Galaxies around High-z Radio Sourcesastro-ph/0307560v1 · Ian Smail, C.A. Scharf, R.J. Ivison et al.2003 · 28 citationsAstrophys.J.599:86-91,2003
Distant Cluster Hunting II: A comparison of X-ray and optical cluster detection techniques and catalogs from the ROX Surveyastro-ph/0112529v1 · Megan Donahue, Caleb Scharf, Jennifer Mack et al.2001 · 74 citationsarXiv
Distant Cluster Hunting I: A Comparison Between the Optical and X-ray Luminosity Functions from an Optical/X-ray Surveyastro-ph/0112530v1 · Megan Donahue, Jennifer Mack, Caleb Scharf et al.2001 · 56 citations2001 ApJ Letters 552, L93-L96
Discovery of a very X-ray luminous galaxy cluster at z=0.89 in the WARPS surveyastro-ph/0012175v1 · H. Ebeling, L.R. Jones, B.W. Fairley et al.2000 · 74 citationsarXiv
Evidence for X-Ray Emission from a Large-Scale Filament of Galaxies?10600621 · Scharf, Donahue, Voit et al.2019 · 84 citationsThe Astrophysical journal. 2000;528(2):L73-L76
The 2-10 keV XRB dipole and its cosmological implicationsastro-ph/9908187v2 · C. A. Scharf, K. Jahoda, M. Treyer et al.1999 · 52 citationsarXiv
Detection of the Entropy of the Intergalactic Medium: Accretion Shocks in Clusters, Adiabatic Cores in Groupsastro-ph/9907299v2 · Paolo Tozzi, Caleb Scharf, Colin Norman1999 · 53 citationsAstrophys.J. 542 (2000) 106-119
The WARPS survey: III. The discovery of an X-ray luminous galaxy cluster at z=0.833 and the impact of X-ray substructure on cluster abundance measurementsastro-ph/9905321v2 · H. Ebeling, L.R. Jones, E. Perlman et al.1999 · 82 citationsarXiv
Observational Tests of the Mass-Temperature Relation for Galaxy Clustersastro-ph/9902151v1 · Donald J. Horner (UMD/GSFC), Richard F. Mushotzky (NASA/GSFC), Caleb A. Scharf (STScI)1999 · 167 citationsAstrophys.J. 520 (1999) 78-86
Lensing and the luminosity of Gamma-ray bursts and their hostsastro-ph/9809008v1 · C. A. Scharf, K. C. Sahu1998 · 0 citationsarXiv
Large Scale Fluctuations in the X-Ray Backgroundastro-ph/9801293v2 · Marie Treyer, Caleb Scharf, Ofer Lahav et al.1998 · 24 citationsarXiv
The WARPS survey - II: The Log(N)-Log(S) relation and the X-ray evolution of low luminosity Clusters of Galaxiesastro-ph/9709189v1 · L.R. Jones, C. Scharf, H. Ebeling et al.1997 · 109 citationsarXiv
The Galaxy Cluster Luminosity-Temperature Relationship and Iron Abundances - A Measure of Formation History ?astro-ph/9706041v1 · C. A. Scharf (GSFC/Umd), R. F. Mushotzky (GSFC)1997 · 15 citationsarXiv
The Luminosity-Temperature Relation at z=0.4 for Clusters of galaxiesastro-ph/9703039v2 · R.F. Mushotzky (GSFC), C. A. Scharf (GSFC/Umd)1997 · 260 citationsAstrophys.J. 482 (1997) L13
The WARPS X-ray survey of galaxies, groups and clusters I: Method and first resultsastro-ph/9608200v1 · C. A. Scharf, L. R. Jones, H. Ebeling et al.1996 · 149 citationsarXiv
ON THE MEASUREMENT OF A COSMOLOGICAL DIPOLE IN THE PHOTON NUMBER COUNTS OF GAMMA-RAY BURSTSastro-ph/9506008v1 · C.A. Scharf, K. Jahoda, E. Boldt1995 · 9 citationsAstrophys.J. 454 (1995) 573
Wiener Reconstruction of Galaxy Surveys in Spherical Harmonicsastro-ph/9311059v1 · O. Lahav, K.B. Fisher, Y. Hoffman et al.1993 · 91 citationsAstrophys.J. 423 (1994) L93
A Spherical Harmonic Approach to Redshift Distortion and a Measurement of Omega from the 1.2 Jy IRAS Redshift Surveyastro-ph/9309027v1 · Karl B. Fisher, Caleb A. Scharf, Ofer Lahav1993 · 148 citationsarXiv
Career total: 132 works. 48 are in this corpus.
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