Erin Kara
Institute of Astronomy, University of Cambridge

I’m a PhD student and Gates Cambridge Scholar researching accreting black holes using X-ray observations. My current focus is on the timing analysis of AGN.


My research interests are in high-energy astrophysics. For my PhD,  I am studying black holes and accretion in the strong gravity regime. Specifically, I am currently conducting research on observations of X-ray reverberation lags in Active Galactic Nuclei.


ekara (at)

Institute of Astronomy
Madingley Road
United Kingdom

+44 (0) 1223 337511


The changing X-ray time lag in MCG-6-30-15

Kara E., Fabian A.C., Marinucci A., Matt G., Parker M.L., Alston W., Brenneman L.W., Cackett E.M., Miniutti G., 2014 ArXiv e-prints, arXiv:1408.5051

The curious time lags of PG 1244+026: discovery of the iron K reverberation lag

Kara E., Cackett E.M., Fabian A.C., Reynolds C., Uttley P., 2014 MNRAS, 439

Discovery of high-frequency iron K lags in Ark 564 and Mrk 335

Kara E., Fabian A.C., Cackett E.M., Uttley P., Wilkins D.R., Zoghbi A., 2013 MNRAS, 434

Revealing the X-ray source in IRAS 13224-3809 through flux-dependent reverberation lags

Kara E., Fabian A.C., Cackett E.M., Miniutti G., Uttley P., 2013 MNRAS, 430

The closest look at 1H0707-495: X-ray reverberation lags with 1.3 Ms of data

Kara E., Fabian A.C., Cackett E.M., Steiner J.F., Uttley P., Wilkins D.R., Zoghbi A., 2013 MNRAS, 428

Gamma-Ray Emission from Two Blazars Behind the Galactic Plane: B2013+370 and B2023+336

Kara E., Err, o M., Max-Moerbeck W., Aliu E., Böttcher M., Fortin P., Halpern J.P., Mukherjee R., Readhead A.C.S., Richards J.L., 2012 ApJ, 746

X-ray reverberation around accreting black holes

Uttley P., Cackett E.M., Fabian A.C., Kara E., Wilkins D.R., 2014 Astronomy & Astrophysics Review, 22

The NuSTAR spectrum of Mrk 335: extreme relativistic effects within two gravitational radii of the event horizon?

Parker M.L., Wilkins D.R., Fabian A.C., Grupe D., Dauser T., Matt G., Harrison F.A., Brenneman L., Boggs S.E., Christensen F.E., Craig W.W., Gallo L.C., Hailey C.J., Kara E., Komossa S., Marinucci A., Miller J.M., Risaliti G., Stern D., Walton D.J., Zhang W.W., 2014 MNRAS, 443

Detection of a QPO in five XMM-Newton observations of RE J1034+396

Alston W.N., Markevičiūtė J., Kara E., Fabian A.C., Middleton M., 2014 MNRAS, 445

Black hole spin and size of the X-ray-emitting region(s) in the Seyfert 1.5 galaxy ESO 362-G18

Agís-González B., Miniutti G., Kara E., Fabian A.C., Sanfrutos M., Risaliti G., Bianchi S., Strotjohann N.L., Saxton R.D., Parker M.L., 2014 MNRAS, 443

Observations of MCG-5-23-16 with Suzaku, XMM-Newton and NuSTAR: Disk Tomography and Compton Hump Reverberation

Zoghbi A., Cackett E.M., Reynolds C., Kara E., Harrison F.A., Fabian A.C., Lohfink A., Matt G., Balokovic M., Boggs S.E., Christensen F.E., Craig W., Hailey C.J., Stern D., Zhang W.W., 2014 ApJ, 789

Caught in the act: measuring the changes in the corona that cause the extreme variability of 1H 0707-495

Wilkins D.R., Kara E., Fabian A.C., Gallo L.C., 2014 MNRAS, 443

NuSTAR and XMM-NEWTON Observations of NGC 1365: Extreme Absorption Variability and a Constant Inner Accretion Disk

Walton D.J., Risaliti G., Harrison F.A., Fabian A.C., Miller J.M., Arevalo P., Ballantyne D.R., Boggs S.E., Brenneman L.W., Christensen F.E., Craig W.W., Elvis M., Fuerst F., G, hi P., Grefenstette B.W., Hailey C.J., Kara E., Luo B., Madsen K.K., Marinucci A., Matt G., Parker M.L., Reynolds C.S., Rivers E., Ross R.R., Stern D., Zhang W.W., 2014 ApJ, 788

Simultaneous NuSTAR and XMM-Newton 0.5-80 keV spectroscopy of the narrow-line Seyfert 1 galaxy SWIFT J2127.4+5654

Marinucci A., Matt G., Kara E., Miniutti G., Elvis M., Arevalo P., Ballantyne D.R., Baloković M., Bauer F., Brenneman L., Boggs S.E., Cappi M., Christensen F.E., Craig W.W., Fabian A.C., Fuerst F., Hailey C.J., Harrison F.A., Risaliti G., Reynolds C.S., Stern D.K., Walton D.J., Zhang W., 2014 MNRAS, 440

The Broadband Spectral Variability of MCG-6-30-15 Observed by NuSTAR and XMM-Newton

Marinucci A., Matt G., Miniutti G., Guainazzi M., Parker M.L., Brenneman L., Fabian A.C., Kara E., Arevalo P., Ballantyne D.R., Boggs S.E., Cappi M., Christensen F.E., Craig W.W., Elvis M., Hailey C.J., Harrison F.A., Reynolds C.S., Risaliti G., Stern D.K., Walton D.J., Zhang W., 2014 ApJ, 787

On the determination of the spin and disc truncation of accreting black holes using X-ray reflection

Fabian A.C., Parker M.L., Wilkins D.R., Miller J.M., Kara E., Reynolds C.S., Dauser T., 2014 MNRAS, 439

Modelling the broad Fe Kα reverberation in the AGN NGC 4151

Cackett E.M., Zoghbi A., Reynolds C., Fabian A.C., Kara E., Uttley P., Wilkins D.R., 2014 MNRAS, 438

Modeling the Optical-X-Ray Accretion Lag in LMC X-3: Insights into Black-hole Accretion Physics

Steiner J.F., McClintock J.E., Orosz J.A., Buxton M.M., Bailyn C.D., Remillard R.A., Kara E., 2014 ApJ, 783

Principal component analysis of MCG-06-30-15 with XMM-Newton

Parker M.L., Marinucci A., Brenneman L., Fabian A.C., Kara E., Matt G., Walton D.J., 2014 MNRAS, 437

Hard X-Ray Lags in Active Galactic Nuclei: Testing the Distant Reverberation Hypothesis with NGC 6814

Walton D.J., Zoghbi A., Cackett E.M., Uttley P., Harrison F.A., Fabian A.C., Kara E., Miller J.M., Reis R.C., Reynolds C.S., 2013 ApJl, 777

The Hot and Energetic Universe: The close environments of supermassive black holes

Dovciak M., Matt G., Bianchi S., Boller T., Brenneman L., Bursa M., D'Ai A., di Salvo T., de Marco B., Goosmann R., Karas V., Iwasawa K., Kara E., Miller J., Miniutti G., Papadakis I., Petrucci P.-O., Ponti G., Porquet D., Reynolds C., Risaliti G., Rozanska A., Zampieri L., Zezas A., Young A., 2013 ArXiv e-prints, arXiv:1306.2331

Discovery of Fe Kα X-Ray Reverberation around the Black Holes in MCG-5-23-16 and NGC 7314

Zoghbi A., Reynolds C., Cackett E.M., Miniutti G., Kara E., Fabian A.C., 2013 ApJ, 767

Long XMM observation of the narrow-line Seyfert 1 galaxy IRAS 13224-3809: rapid variability, high spin and a soft lag

Fabian A.C., Kara E., Walton D.J., Wilkins D.R., Ross R.R., Lozanov K., Uttley P., Gallo L.C., Zoghbi A., Miniutti G., Boller T., Br, t W.N., Cackett E.M., Chiang C.-Y., Dwelly T., Malzac J., Miller J.M., Nardini E., Ponti G., Reis R.C., Reynolds C.S., Steiner J.F., Tanaka Y., Young A.J., 2013 MNRAS, 429

A Soft X-Ray Reverberation Lag in the AGN ESO 113-G010

Cackett E.M., Fabian A.C., Zogbhi A., Kara E., Reynolds C., Uttley P., 2013 ApJl, 764

Toward Early-warning Detection of Gravitational Waves from Compact Binary Coalescence

Cannon K., Cariou R., Chapman A., Crispin-Ortuzar M., Fotopoulos N., Frei M., Hanna C., Kara E., Keppel D., Liao L., Privitera S., Searle A., Singer L., Weinstein A., 2012 ApJ, 748

Time-resolved Spectroscopy of the Three Brightest and Hardest Short Gamma-ray Bursts Observed with the Fermi Gamma-ray Burst Monitor

Guiriec S., Briggs M.S., Connaugthon V., Kara E., Daigne F., Kouveliotou C., van der Horst A.J., Paciesas W., Meegan C.A., Bhat P.N., Foley S., Bissaldi E., Burgess M., Chaplin V., Diehl R., Fishman G., Gibby M., Giles M.M., Goldstein A., Greiner J., Gruber D., von Kienlin A., Kippen M., McBreen S., Preece R., Rau A., Tierney D., Wilson-Hodge C., 2010 ApJ, 725