Overview
overview
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Dr. Webb is a world-renowned astrophysicist specializing in the variability of Blazars across the Electro-magnetic spectrum. He has hosted international conferences, edited conference proceedings, guest edited publications on Blazar variability, and published a graduate-level textbook on Extra-Galactic Astrophysics. He specializes in optical observations using large telescopes located around the world and also NASA satellite telescopes in the Gamma-ray, UV and IR region of the spectrum.
In addition to these scientific pursuits, Dr. Webb popularizes science, hosting a public lecture series at FIU for 26 years, giving hundreds of public lectures on topics ranging from SETI to gravitational waves. He has given guest lectures across the country and wrote a suite of astronomy songs which he recorded in a professional studio. The resulting CD entitled "Reaching for The Stars" contains his original astronomy songs and he also performs them live at special planetarium concerts around the country.
research interests
- Astronomy and Astrophysics
Scholarly & Creative Works
selected publications
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Article
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2022Host galaxy magnitude of OJ 287 from its colours at minimum lightFull Text via DOI: 10.1093/mnras/stac1522 Web of Science: 000815336400009
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2022Rapid X-ray variability in Mkn 421 during a multiwavelength campaignFull Text via DOI: 10.1093/mnras/stac917 Web of Science: 000790937100007
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202130 Years of Multifrequency Quasar Variability: A Personal JourneyFull Text via DOI: 10.3390/galaxies9040069 Web of Science: 000737148300001
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2021The Nature of Micro-Variability in BlazarsFull Text via DOI: 10.3390/galaxies9040114 Web of Science: 000751695600001
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2021Spectral shape corrections for SDSS BOSS quasarsFull Text via DOI: 10.1051/0004-6361/202141392
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2021Non-uniqueness in quasar absorption models and implications for measurements of the fine structure constantFull Text via DOI: 10.1093/mnras/stab2005 Web of Science: 000696261000002
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2021Artificial intelligence and quasar absorption system modelling; application to fundamental constants at high redshiftFull Text via DOI: 10.1093/mnras/stab977 Web of Science: 000659453800018
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2021Getting the model right: an information criterion for spectroscopyFull Text via DOI: 10.1093/mnras/staa3551 Web of Science: 000608475600048
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2021A new era of fine structure constant measurements at high redshiftFull Text via DOI: 10.1093/mnras/staa3217 Web of Science: 000599134600001
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2020Four direct measurements of the fine-structure constant 13 billion years agoFull Text via DOI: 10.1126/sciadv.aay9672 Web of Science: 000530628100012
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2020Precision and consistency of astrocombsFull Text via DOI: 10.1093/mnras/staa356 Web of Science: 000526035600067
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2019A search for cosmological anisotropy using the Lyman alpha forest from SDSS quasar spectraFull Text via DOI: 10.1093/mnras/stz2416 Web of Science: 000489288600076
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2019Statistical Analysis of Microvariability Properties of the Blazar S5 0716+714Full Text via DOI: 10.3847/1538-4357/ab3e50 Web of Science: 000501733600017
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2019A far-UV survey of three hot, metal-polluted white dwarf stars: WD0455-282, WD0621-376, and WD2211-495Full Text via DOI: 10.1093/mnras/stz1506 Web of Science: 000478053200040
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2018Origin of Metals around Galaxies. I. Catalogs of Metal-line Absorption Doublets from High-resolution Quasar SpectraFull Text via DOI: 10.3847/1538-4357/aac81a Web of Science: 000439334300017
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2018Microvariability in BL Lacertae: "Zooming" into the Innermost Blazar RegionsFull Text via DOI: 10.3390/galaxies6010002 Web of Science: 000428554900002
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2017Coordinated Micro-Variability CIRCE Polarimetry and SARA JKT Multi-Frequency Photometry Observations of the Blazar S5 0716+71Full Text via DOI: 10.3390/galaxies5040077 Web of Science: 000419211800022
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2017Intraday optical variability of BL LacertaeFull Text via DOI: 10.1093/mnras/stx1055 Web of Science: 000406836200076
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2017Radio and optical intra-day variability observations of five blazarsFull Text via DOI: 10.1093/mnras/stx1062 Web of Science: 000406629100092
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2017Artificial intelligence applied to the automatic analysis of absorption spectra. Objective measurement of the fine structure constantFull Text via DOI: 10.1093/mnras/stx179 Web of Science: 000399429600033
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2017Evaluating the New Automatic Method for the Analysis of Absorption Spectra Using Synthetic SpectraFull Text via DOI: 10.3390/universe3020034 Web of Science: 000404620300007
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2017Probing the Gravitational Dependence of the Fine-Structure Constant from Observations of White Dwarf StarsFull Text via DOI: 10.3390/universe3020032 Web of Science: 000404620300005
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2017The Remote Observatories of the Southeastern Association for Research in Astronomy (SARA)Full Text via DOI: 10.1088/1538-3873/129/971/015002 Web of Science: 000390360700001
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2016A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing CampaignFull Text via DOI: 10.3390/galaxies4040041 Web of Science: 000391004000009
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2016Multi-Frequency Blazar Micro-Variability as a Tool to Investigate Relativistic JetsFull Text via DOI: 10.3390/galaxies4030015 Web of Science: 000385480600008
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2016PRIMARY BLACK HOLE SPIN IN OJ 287 AS DETERMINED BY THE GENERAL RELATIVITY CENTENARY FLAREFull Text via DOI: 10.3847/2041-8205/819/2/L37 Web of Science: 000371788300021
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2015A new analysis of fine-structure constant measurements and modelling errors from quasar absorption linesFull Text via DOI: 10.1093/mnras/stv2148 Web of Science: 000368000400063
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2015DISCOVERY OF A HIGHLY POLARIZED OPTICAL MICROFLARE IN BLAZAR S5 0716+714 DURING THE 2014 WEBT CAMPAIGNFull Text via DOI: 10.1088/2041-8205/809/2/L27 Web of Science: 000360715500010
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2013The 72-h WEBT microvariability observation of blazar S5 0716+714 in 2009Full Text via DOI: 10.1051/0004-6361/201220236 Web of Science: 000326574000092
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2013Value versus growth international real estate investmentFull Text via DOI: 10.1111/j.1540-6229.2012.00335.x
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2012Multiwavelength intraday variability of the BL Lacertae S5 0716+714Full Text via DOI: 10.1111/j.1365-2966.2012.21550.x Web of Science: 000307888300043
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2012Spatial variation in the fine-structure constant - new results from VLT/UVESFull Text via DOI: 10.1111/j.1365-2966.2012.20852.x Web of Science: 000304246100040
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2011New constraint on cosmological variation of the proton-to-electron mass ratio from Q0528-250Full Text via DOI: 10.1111/j.1365-2966.2011.19460.x Web of Science: 000297043900043
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2010Industrial real estate investment: Does the contrarian strategy work?Full Text via DOI: 10.1007/s11146-008-9147-x
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2009Common factors in international securitized real estate marketsFull Text via DOI: 10.1016/j.rfe.2008.05.002
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2008Stringent Null Constraint on Cosmological Evolution of the Proton-to-Electron Mass RatioFull Text via DOI: 10.1103/PhysRevLett.101.251304 Web of Science: 000261891200012
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2008Nonlinear return dependence in major real Estate marketsFull Text via DOI: 10.1080/09599910902837036
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2008Multifrequency monitoring of the blazar 0716+714 during the GASP-WEBT-AGILE campaign of 2007Full Text via DOI: 10.1051/0004-6361:200809552 Web of Science: 000254515800002
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2008Corporate real estate strategies and financial performance of companiesFull Text via DOI: 10.1080/09599910802696722
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2007The WEBT campaign on the Blazar 3C 279 in 2006Full Text via DOI: 10.1086/522583 Web of Science: 000251238300006
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2007The asymmetric response of equity REIT returns to inflationFull Text via DOI: 10.1007/s11146-007-9023-0
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2007Simultaneous microvariability observations of 0716+71Full Text via DOI: 10.1086/510310 Web of Science: 000243730000012
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2006Institutional real estate portfolio diversification in Ireland and the UKFull Text via DOI: 10.1108/14635780610655094
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2006Corporate real estate strategy in the UK and MalaysiaFull Text via DOI: 10.1108/14630010610714844
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2005Inconstant contantsFull Text via DOI: 10.1038/scientificamerican0605-56 Web of Science: 000229058500031
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2005The labor-leisure choice in executive compensation plans: Does too much pay reduce REIT performance?Full Text via DOI: 10.1016/j.jeconbus.2004.09.004 Web of Science: 000213691500004
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2005Evolving research priorities: The contents of land economicsFull Text via DOI: 10.3368/le.81.4.457
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2004Microvariability and long-term variability of four blazarsFull Text via DOI: 10.1086/380216 Web of Science: 000188745300003
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2000The 1997 outburst of AO 0235+164: Evidence for a microlensing event?Full Text via DOI: 10.1086/301432 Web of Science: 000088585900003
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1999Search for time variation of the fine structure constantFull Text via DOI: 10.1103/PhysRevLett.82.884 Web of Science: 000078412900004
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1999VLA observations of a 4C equatorial sample. II.Full Text via DOI: 10.1051/aas:1999146 Web of Science: 000078654700001
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1998Broadband optical observations of BL Lacertae during the 1997 outburstFull Text via DOI: 10.1086/300357 Web of Science: 000074104000006
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1998Multiwavelength observations of a dramatic high-energy flare in the blazar 3C 279Full Text via DOI: 10.1086/305461 Web of Science: 000073049600016
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1998Cointegration in return series and its effect on short-term predictionFull Text via DOI: 10.1108/03074359810765651
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1997Damped Ly alpha absorption associated with an early-type galaxy at redshift z=0.16377Full Text via DOI: 10.1086/118567 Web of Science: A1997XX79700006
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1996Simultaneous multiwavelength spectrum and variability of 3C 279 from 10(9) to 10(24) HzFull Text via DOI: 10.1086/177095 Web of Science: A1996UE57000019
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1996The bootstrap efficient frontier for mixed-asset portfoliosFull Text via DOI: 10.1111/1540-6229.00689
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1994Statistical properties of returns: Financial assets versus commercial real estateFull Text via DOI: 10.1007/BF01096997
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1994OPTICAL AND ULTRAVIOLET OBSERVATIONS OF 3C-279 DURING OUTBURSTFull Text via DOI: 10.1086/116904 Web of Science: A1994MZ12800006
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1994THE MULTIFREQUENCY SPECTRAL EVOLUTION OF BLAZAR 3C 345 DURING THE 1991 OUTBURSTFull Text via DOI: 10.1086/173750 Web of Science: A1994MZ63600013
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1994Multifrequency Variability of Blazars 3C 279 and 3C 345Full Text via DOI: 10.1017/s0074180900176016
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1993ULTRAVIOLET CONTINUUM VARIABILITY AND VISUAL FLICKERING IN THE PECULIAR OBJECT MWC-560Full Text via DOI: 10.1086/186858 Web of Science: A1993LC83400006
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1992Real Estate Taxation and Commercial Mortgage UnderwritingFull Text via DOI: 10.1111/j.1540-5915.1992.tb00441.x
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1991MULTIFREQUENCY OBSERVATIONS OF BL LACERTAE IN 1988Full Text via DOI: 10.1086/170737 Web of Science: A1991GR01200012
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1991RAPID ULTRAVIOLET VARIABILITY IN THE BL LACERTAE OBJECT PKS-2155-304Full Text via DOI: 10.1086/186011 Web of Science: A1991FH36800003
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1991The impact of rental properties on the value of single-family residencesFull Text via DOI: 10.1016/0094-1190(91)90033-4
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1990THE 1987-1990 OPTICAL OUTBURST OF THE OVV QUASAR 3C-279Full Text via DOI: 10.1086/115609 Web of Science: A1990EF66700006
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1990MULTIFREQUENCY OBSERVATIONS OF BL LACERTAEFull Text via DOI: 10.1086/168559 Web of Science: A1990CZ29700015
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1990Science Observations with the IUE Using the One Gyro ModeFull Text via DOI: 10.1017/s0252921100077587
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1990THE NATURE OF THE OPTICAL VARIATIONS OF SEYFERT-GALAXY 3C-120Full Text via DOI: 10.1086/115311 Web of Science: A1990CH25000007
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1989THE 1987 OUTBURST OF THE BL LACERTID AO0235+164Web of Science: A1989AK57500009
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1989MULTIFREQUENCY OBSERVATIONS OF BLAZARS .3. THE SPECTRAL SHAPE OF THE RADIO TO X-RAY CONTINUUMFull Text via DOI: 10.1086/167380 Web of Science: A1989U230700010
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1988LONG-TERM OPTICAL BEHAVIOR OF 144 COMPACT EXTRAGALACTIC OBJECTS - 1969-1988Full Text via DOI: 10.1086/114875 Web of Science: A1988Q238500004
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1988Multifrequency observation of the optically violent variable quasar 3C 446Full Text via DOI: 10.1086/166596
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1988OPTICAL OBSERVATIONS OF 22 VIOLENTLY VARIABLE EXTRAGALACTIC SOURCES - 1968-1986Full Text via DOI: 10.1086/114641 Web of Science: A1988L904600007
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1988An examination of the seasonality in industrial real estate constructionFull Text via DOI: 10.1080/02640828808723953
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1987OPTICAL VARIABILITY OF X-RAY-SELECTED QSOSFull Text via DOI: 10.1086/114469 Web of Science: A1987J367600003
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1986THE SPECTRAL SHAPE AND VARIABILITY OF THE BLAZAR 3C-446Full Text via DOI: 10.1093/mnras/219.3.671 Web of Science: A1986A585000017
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1986MULTIFREQUENCY OBSERVATIONS OF THE SUPERLUMINAL QUASAR 3C 345Full Text via DOI: 10.1086/163938 Web of Science: A1986A308500020
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1986Portfolio Considerations in the Valuation of Real EstateFull Text via DOI: 10.1111/1540-6229.00398
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19842 MULTIFREQUENCY OBSERVATIONS OF 3C 371Full Text via DOI: 10.1086/161818 Web of Science: A1984SQ46000006
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1983MULTIFREQUENCY OBSERVATIONS OF THE FLARING QUASAR 1156+295Full Text via DOI: 10.1086/161428 Web of Science: A1983RT39500009
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1983THE QSO 1156+295 - A MULTIFREQUENCY STUDY OF RECENT ACTIVITYFull Text via DOI: 10.1086/161426 Web of Science: A1983RT39500007
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1982SIMULTANEOUS OBSERVATIONS OF THE BL LACERTAE OBJECT-I ZW 187Full Text via DOI: 10.1086/159605 Web of Science: A1982NF36800002
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Book
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Book Chapter
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1994MULTIWAVELENGTH EVOLUTION OF THE 1991 OUTBURST OF 3C-345. 693-694.Web of Science: A1994BB56F00114
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1990Science Observations with the IUE Using the One Gyro Mode. 517-520.Full Text via DOI: 10.1007/978-94-011-3454-5_77
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Conference
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2010
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2010Keck constraints on a varying fine-structure constant: wavelength calibration errors. 315-315.Full Text via DOI: 10.1017/S174392131000952X Web of Science: 000290186900138
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2002Gravitational microlensing and blazar variability: The case of AO 0235+164. 95-102.Web of Science: 000177508800011
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1999The dual jet model for Blazar continuum emission. 329-332.Web of Science: 000080089400080
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1997Multiwavelength observations of the February 1996 high-energy flare in the blazar 3C279. 1417-1422.Web of Science: 000071400800207
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1993THE OPTICAL-UV SPECTRUM OF 3C-279 DURING OUTBURST. 513-517.Web of Science: A1993BZ02L00084
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Editorial Material
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2009Introduction for special issue of RFE on real estate. 68-69.Full Text via DOI: 10.1016/j.rfe.2008.09.001
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Other Scholarly Work
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2021The Remote Observatories of the Southeastern Association for Research in Astronomy (SARA) (vol 129, 015002, 2017)Full Text via DOI: 10.1088/1538-3873/ac0a96 Web of Science: 000665681700001
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2006Editorial: I keep my eyes wide open all the time. 3-3.Full Text via DOI: 10.6017/ital.v25i1.3323 Web of Science: 000236683700002
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2005Editorial: Information technology dissonance. 156-156.Full Text via DOI: 10.6017/ital.v24i4.3379 Web of Science: 000234578200002
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1989A WALK IN THE LYMAN-ALPHA FOREST. 620-621.Full Text via DOI: 10.1038/338620a0 Web of Science: A1989U228800034
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Review
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2006An economic analysis of housing construction evidence from Hong Kong. 1-12.Full Text via DOI: 10.1142/s1609945106000517
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2002An international analysis of real estate journals. 454-472.Full Text via DOI: 10.1108/14635780210446478
Works By Students
chaired theses and dissertations
- Dhalla, Sarah M, Analysis of Kepler Active Galactic Nuclei Using A Revised Kirk, Rieger, Mastichiadis (1998) Model 2014
- Bhatta, Gopal, The Nature of Microvariability in Blazar 0716+714 2012
Videos
videos
Contact
full name
- James Webb
Identifiers
ORCID iD
- https://orcid.org/0000-0001-6078-2022 (confirmed)
visualizations
publication subject areas
Citation index-derived subject areas the researcher has published in