International CHASC Astro-Statistics Collaboration
This page lists resources of specific interest to astronomers.
For detailed descriptions and reports of C-BAS/ICHASC activities, see
www2.imperial.ac.uk/~dvandyk/astrostat.php
- BEHR: Bayesian estimation of Hardness Ratios
- Park, T., Kashyap, V.L., Siemiginowska, A., van Dyk, D., Zezas, A., Heinke, C., & Wargelin, B.J., 2006, ApJ, 652, 610
- LIRA: Image reconstruction with error estimates (nee EMC2)
- github repository
- Connors, A., Stein, N.M., van Dyk, D., Kashyap, V., & Siemiginowska, A., ADASS XX, ASPC (Eds. Ian N. Evans, Alberto Accomazzi, Douglas J. Mink, and Arnold H. Rots), v442, p463 (2011ASPC..442..463C)
- Connors, A. & van Dyk, D.A., 2007, SCMA IV, ASPC (Eds. G.J.Babu and E.D.Feigelson), v371, p101 (2007ASPC..371..101C)
- Esch, D.N., Connors, A., Karovska, M., & van Dyk, D.A., 2004, ApJ, 610, 1213
- BLoCXS: Bayesian low-Counts X-ray spectral analysis
- pyBLoCXS: python version of BLoCXS, optimized for use in Sherpa
- Protassov, R., van Dyk, D.A., Connors, A., Kashyap, V.L., & Siemiginowska, A., 2002, ApJ, 571, 545
- van Dyk, D.A., Connors, A., Kashyap, V.L., & Siemiginowska, A., 2001, ApJ, 548, 224
- BRoaDem: Bayesian reconstruction of a Differential Emission Measure
- Kang, H., van Dyk, D.A., Kashyap, V.L., & Connors, A., 2005, in ``X-Ray Diagnostics of Astrophysical Plasmas: Theory, Experiment, and Observation'', AIP Conference Proceedings, Volume 774, p.373
- see also MCMC_DEM: Differential Emission Measure reconstruction using Markov-Chain Monte Carlo
- Kashyap, V. & Drake, J.J., 1998, ApJ, 503, 450
- bayesstack: stacks counts from many weak sources to infer the intrinsic flux or luminosity distribution
-
- Special Session on Astrostatistics in High Energy Astrophysics in memory of Alanna Connors
- AAS/HEAD Monterey, 7:30pm-9pm, 8 Apr 2013
- Courses of interest for 2012-2013:
- Stat 310 and Stat 281: Topics in AstroStatistics (AY 2012-2013)
- Seminar course for CfA/Harvard/UCI/UCD/ICL astrostatistical collaborative projects
-
- mini-Workshop on Solar Statistics: Feb 16-17 2011
- Courses of interest for 2011-2012:
- Stat 310 and Stat 281: Topics in AstroStatistics (AY 2011-2012)
- Seminar course for CfA/Harvard/UCI/ICL astrostatistical collaborative projects
- Applied Mathematics 207: Advanced Scientific Computing: Stochastic Optimization Methods (requires Harvard ID to view)
- To develop skills for computational research with focus on stochastic approaches.
-
- Special Session on Time Series in High Energy Astrophysics: Techniques Applicable to Multi-Dimensional Analysis at AAS-HEAD, 2011-Sep-07, 7:30am-9:10pm
- Talks
- [06.01] Joseph Richards, New Techniques in Light Curve Analysis [.pdf]
- [06.02] Pavlos Protopapas, Period Estimation in Astronomical Time Series [.pptx]
- [06.03] Ashish Mahabal, Classification with Sparse Timeseries [.pdf]
- [06.04] Eric Gotthelf, Optimized Timing Searches for Gamma-ray Pulsars Using New Technology [.key]
- Brandon Kelly, Commentary [.pptx]
- Posters
- [17.01] Alanna Connors et al., Incorporating Spectra Into Periodic Timing: Bayesian Energy Quantiles [.pdf]
- Courses of interest for 2010-2011:
- Applied Mathematics 205b: Advanced Scientific Computing: Stochastic Optimization Methods
- Pavlos Protopapas and Efthimios Kaxiras
- Talks schedule for 2010-2011
- Unofficial seminar course for CfA-Harvard-UCI astrostatistical collaborative projects
- mini-Workshop on Computational Astrostatistiscs
- Aug 24-25, 2010, at CfA
- AstroStatistics Special Session AAS 215 (2:00pm - 3:30pm, 17 Jan 2010, Washington, DC)
- Beyond simple models-New methods for complex data
- Description
- Presentations from the special session:
- Meng [.ppt]
- Kelly [.ppt]
- Pesenson [.ppt]
- Heitman [.ppt]
- Djorgovski [.ppt]
- Schafer [.pdf]
- Courses of interest for 2009-2010:
- Stat 310: Topics in Astrostatistics (Fall/Winter 2009/2010)
- Seminar course in Astrostatistics taught by Prof. Xiao-li Meng with assistance from CHASC members
- AstroStatistics Special Session AAS 2009 (2:00pm - 3:30pm, 5 Jan 2009, Long Beach, CA)
- Meaning from Surveys and Population Studies: BYOQ*
- AAS abstract
- Courses of interest for 2008-2009:
- Stat 310: Topics in Astrostatistics (Fall/Winter 2008/2009)
- Seminar course in Astrostatistics taught by Prof. Xiao-li Meng with assistance from CHASC members
- AstroStatistics Special Session HEAD 2008 (31 March 2008, Los Angeles, CA)
- Courses of interest for 2007-2008:
- Stat 310: Topics in Astrostatistics (Fall/Winter 2007/2008)
- Seminar course in Astrostatistics taught by Prof. Xiao-li Meng with assistance from CHASC members
- Special Session at GLAST Symposium
- Courses of interest for 2006-2007:
- Stat 310: Topics in Astrostatistics (Fall/Winter 2006/2007)
- Seminar course in Astrostatistics taught by Prof. Xiao-li Meng with assistance from CHASC members
- Astronomy 97hf. Introductory Tutorial
- Christopher Stubbs and members of the Department
- Astronomical optics, to detectors, signal to noise considerations, and image analysis.
- CHASC members are also involved in
the SAMSI Workshops on AstroStatistics and
the Banff Challenge
- Courses of interest for 2005-2006:
- Stat 310: Topics in Astrostatistics
- ES 251: Signal and Image processing and inference using wavelets (course description)
- joint course by the Statistics and Engineering departments, taught by Profs. Patrick Wolfe, Xiao-Li Meng, and Thomas Lee
- ES 255: Detection and Estimation Theory & Applications (course description)
- joint course by the Statistics and Engineering departments
- Incorporating Calibration Uncertainties into Data Analysis (Nov 1, 2005; special Session at the Chandra Calibration Workshop)
- Stat 310: Astro-Statistics Seminar (Fall/Winter 2004/2005, Harvard University)
- AstroStatistics Workshop at HEAD 2004 (September 2004, New Orleans, LA)
- AstroStatistics Session at Case Studies in Bayesian Analysis, Penn State, September 2003
- Data Analysis Challenges in Solar and Stellar Astrophysics at AAS/SPD 2003 (April 2003, College Park, MD)
- Current Challenges in Poisson Multi-Scale Deconvolution Methods (January 2003, Cambridge, MA)
- Making it Work: Principled ``Model Free Deconvolution" via Multiscale Methods at AAS 2003 (January 2003, Seattle, WA)
- Data Analysis Challenges in Solar and Stellar Coronal Astrophysics at AAS 199 (January 2002, Washington, DC)
- New Results From 'Back-to-Basics' Data Analysis: Special Tutorials on Timing and Fitting at AAS 197 (January 2001)
- On Beyond Chi^2 (and Bevington): Making the Most of Your Poisson Data at HEAD 2000 (November 2000, Honolulu, HI)
- New Statistics for New Missions: Progress and Opportunities for Breakthrough Thinking at AAS 196 (June 2000, Rochester, NY)
- Recent Revolutions in Bayesian and Related Likelihood Techniques: Progress at the Boundaries of Astronomy and Statistics at AAS 194 (June 1999, Chicago, IL)
- Bayesian Analysis Workshop at HEAD 1997 (August 1997, Estes Park, CO)
- Connors, A., Hong, J.S., Protopapas, P., Kashyap, V., Incorporating Spectra Into Periodic Timing: Bayesian Energy Quantiles,
2011, AAS-HEAD, 17.01, 7-8 Sep 2011, Newport, RI
- Poster [.pdf]
- Presented at SCMA V (June 13-17 2011):
- Baines, P., Udaltsova, I., Zezas, A., & Kashyap, V., log(N)-log(S): A Measuring Stick for the Universe
- Blocker, A., et al., Semi-Parametric robust event detection for massive time-domain databases
- Kashyap, V., et al., Systematic Errors in High-Energy Astrophysics
- Kelly, B., Measurement error models in astronomy
- Lee, T., Stenning, D., van Dyk, D., Young, A., & Kashyap, V., Automatic Detection and Classification of Sunspot Images
- Stein, N., von Hippel, T., van Dyk, D., DeGennaro, S., Jeffery, E., & Jefferys, B., Bayesian flux reconstruction in one and two bands
- Xu, J., et al., Using pyBLoCXS for a Fully Bayesian Analysis of Calibration Uncertainty in High Energy Spectral Analysis
- Lee, H., Kashyap, V.L., van Dyk, D.A., Connors, A., Drake, J.J., Izem, R., Meng, X.-L., Min, S., Park, T., Ratzlaff, P., Siemiginowska, A., & Zezas, A., Accounting for Calibration Uncertainties in X-ray Analysis: Effective Areas in Spectral Fitting 2011, ApJ, 731, 126
- ArXiv: arxiv/1102.4610
- Connors, A., van Dyk, D., Stein, N.M., Kashyap, V., & Siemiginowska, A., LIRA - the Low-count Image Restoration and Analysis Package: A Teaching Version via `R', 2010, ADASS XX, 7-11 Nov, Boston, MA
- [.pdf]
- Siemiginowska, A., Kashyap, V., Refsdal, B., van Dyk, D., Connors, A., Park, T., et al., pyblocxs: Bayesian Low-Counts X-ray Spectral Analysis in Sherpa, 2010, ADASS XX, 7-11 Nov, Boston, MA
- poster [.pdf]
- proceedings [.pdf]
- Kashyap, V.L., van Dyk, D.A., Connors, A., Freeman, P.E., Siemiginowska, A., Xu, J., & Zezas, A., On Computing Upper Limits to Source Intensities, 2010, ApJ, 719, 900
- [.pdf]
- ArXiV: arxiv/1006.4334
- Kashyap, V., Lee, H., Siemiginowska, A., van Dyk, D., Drake, J., Connors, A., Zezas, A., Park, T., Min, S., McDowell, J., Rots, A.,
Ratzlaff, P., Kramer, J., Burke, D., & Refsdal, B., 2010, IACHEC, Woods Hole
- presentation: [.pdf]
- Drake, J., Ratzlaff, P., Kashyap, V., Jerius, D., Grant, C., Edgar, D., Marshall, H., Vikhlinin, A., et al., Monte Carlo Grand Prix: Parameter Estimation Including Calibration Uncertainties, 2010, IACHEC, Woods Hole
- presentation: [.pdf]
- Blocker, A.W., Protopapas, P., & Alcock, C.R., A Bayesian Approach to the Analysis of Time Symmetry in Light Curves: Reconsidering Scorpius X-1 Occultations, 2009, ApJ, 701, 1742
- abstract: @ApJ
- Lee, H., Kashyap, V., Drake, J., Ratzlaff, P., Siemiginowska, A., Zezas, A., Connors, A., van Dyk, D., Park, T., & Izem, R., 2009, A Semiparametric Approach to Incorporating Systematic Uncertainties into Bayesian X-Ray Spectral Fitting, at the Workshop o n Semiparametric Methodology, Jan. 8-10, 2009, U of Florida, FL
- abstract: [ascii]
- poster: [.pdf]
- Kashyap, V., Lee, H., Siemiginowska, A., MacDowell, J., Rots, A., Drake, J., Ratzlaff, P., Zezas, A., Izem, R., Connors,
A., van Dyk, D., \& Park, T., How to handle calibration uncertainties in high-energy Astrophysics, 2008, SPIE 7016, 7016OP
- manuscript: [.pdf]
- presentation:
[.ppt] ;
[.pdf]
- Lee, H., Kashyap, V., Drake, J., Ratzlaff, P., Siemiginowska, A., Zezas, A., Connors, A., van Dyk, D., Park, T., Izem, R., Incorporating Effective Area Uncertainties Into Spectral Fitting, AAS-HEAD, #10, #41.15
- abstract
- 2008HEAD...10.4115L
- Kashyap, V., van Dyk, D., Connors, A., Freeman, P., Siemiginowska, A., Zezas, A., & the SAMSI-SaFeDe Collaboration, What Is An Upper Limit?, AAS-HEAD, #10, #03.02
- abstract
- 2008HEAD...10.0302C
- Connors, A., van Dyk, D., & Chiang, J., Quantifying Doubt and Confidence in Image "Deconvolution", AAS-HEAD, #10, #03.01
- abstract
- 2008HEAD...10.0301C
- Kashyap, V., Lee, H., Drake, J.J., Ratzlaff, P., Siemiginowska, A., Zezas, A., Connors, A., van Dyk, D., Park, T., & Izem, R., 2007, Incorporating Effective Area Uncertainties in Spectral Fitting, Chandra Calibration Workshop, #117, 25 Oct 2007, Huntsville, AL
- [.pdf]
- Drake, J.J., Ratzlaff, P., Kashyap, V., Edgar, R., Izem, R., Jerius, D., Marshall, H., Siemiginowska, A., & Vikhlinin, A., 2007, Monte Carlo methods for including correlated systematic calibration uncertainties in astrophysical analysis: Chandra ACIS, Chandra Calibration Workshop, #109, 25 Oct 2007, Huntsville, AL
- [.pdf]
- Connors, A. & van Dyk, D.A., 2007, How to Win With Non-Gaussian Data: Poisson Goodness-of-Fit, in Statistical Challenges in Modern Astronomy IV (Eds. G.J.Babu and E.D.Feigelson), Astronomical Society of the Pacific Conference Series, San Francisco, in press
- [.pdf]
- Talks presented by CHASC collaborators at the AstroStat sessions of the Joint Statistical Meeting 2007, July 29 - Aug 2, 2007, Salt Lake City, UT
- 367: Bayesian Applications in Astronomy and Physics (Chair: David van Dyk)
* Paul Edlefsen, A Dempster-Shafer Bayesian Solution to the Banff A1 Challenge
[pdf]
* Jingchen Liu, An Exploratory Statistical Study of the Measured Motion of the Guide Star Used in a New Test of Einstein's Universe
* Paul Baines, Probability Matching Priors in LHC Physics: A Pragmatic Approach
[pdf]
* Hyunsook Lee, A Statistical Approach to Stellar Archaeology
[pdf]
- 411: Image Analysis in Solar- and Astro-physics (Chairs: Yaming Yu & Thomas Lee)
* James Chiang, stronomical Imaging Using the GLAST Large-Area Telescope
[pdf]
* David van Dyk, Fully Bayesian Analysis of Low-Count Astronomical Images
[pdf]
* Alex Young, Multiscale Solar Image Processing
* Thomas Lee, Automatic Detection and Classification of Sunspot Images
[pdf]
* Vinay Kashyap, How to Find Loops in the Solar Corona
[pdf]
[ppt]
- Kashyap, V., Lee, H., Westbrook, O., Wolk, S., Evans, N., Nichols, J., Mendygral, P., Slavin, J., & Waldron, W., 2007,
Summarizing Coronal Spectra, at X-Ray Grating Spectroscopy, July 11-13, 2007, Cambridge, MA
- Abstract
- [.pdf]
- Park, T., Kashyap, V.L., Siemiginowska, A., van Dyk, D., Zezas, A., Heinke, C., & Wargelin, B.J., 2006, Bayesian Estimation of Hardness Ratios, ApJ, 652, 610
- [.pdf]
- van Dyk, D., Park, T., & Siemiginowska, A., 2007, Fitting narrow spectral lines in high-energy astrophysics using incompatible Gibbs samplers, in Statistical Challenges in Modern Astronomy IV (Eds. G.J.Babu and E.D.Feigelson), Astronomical Society of the Pacific Conference Series, San Francisco, in press
-
- Drake, J.J., Ratzlaff, P., Kashyap, V., Edgar, R., Izem, R., Jerius, D., Siemiginowska, A., & Vikhlinin, A., 2006, Monte Carlo Processes for Including Chandra Instrument Response Uncertainties in Parameter Estimation Studies, Proc. SPIE, v6270, p49
- 2006SPIE.6270E..49D
- [.ps]
- van Dyk, D.A., 2006, at Statistical Inference in High Energy Physics and Astrophysics, Banff International Research Station Workshop, Jul 15-20, 2006, Banff, BC
- presentation [.pdf]
- Park, T., van Dyk, D.A., & Siemiginowska, A., 2006, SAMSI Opening Workshop, Jan 23-25, 2006, Raleigh, NC
- poster [.pdf]
- van Dyk, D.A., 2006, SAMSI Opening Workshop, Jan 23-25, 2006, Raleigh, NC
- poster [.pdf]
- Drake, J., Ratzlaff, P., Edgar, R., Izem, R., Jerius, D., Kashyap, V., & Siemiginowska, A., 2005, in Proc. of 4th Chandra Calibration Workshop, Oct 31-Nov 1, 2005, Cambridge, MA
- presentation
- Izem, R., in Proc. of 4th Chandra Calibration Workshop, Oct 31-Nov 1, 2005, Cambridge, MA
- presentation
- Kang, H., van Dyk, D.A., Kashyap, V.L., & Connors, A., 2005, in ``X-Ray Diagnostics of Astrophysical Plasmas: Theory, Experiment, and Observation'', AIP Conference Proceedings, Volume 774, p.373
- 2005AIPC..774..373K
- manuscript [.pdf]
- Kang, H., van Dyk, D., Kashyap, V., & Connors, A., 2004, HEAD, 5.01
- 2004HEAD....8.0501K
- poster : [.ps] ; [.pdf]
- van Dyk, D.A., Park, T., Kashyap, V.L., & Zezas, A., 2004, HEAD, 16.27
- 2004HEAD....8.1627V
- poster [.pdf]
- Yu, Y., Meng, X.L., van Dyk, D.A., Kashyap, V., & Zezas, A., 2004, HEAD, 16.31
- 2004HEAD....8.1631Y
- poster [.ps]
- Sourlas, E., Kashyap, V., Zezas, A., & van Dyk, D., 2004, HEAD, 16.32
- 2004HEAD....8.1632S
- poster : [.pdf] ; [.ps]
- Park, T., van Dyk, D., & Siemiginowska, A., 2004, HEAD, 16.33
- 2004HEAD....8.1633P
- poster [.pdf]
- Yu, Y., van Dyk, D., Siemiginowska, A., Freeman, P., Zezas, A., Kashyap, V., & Connors, A., 2004, HEAD, 16.35
- 2004HEAD....8.1635Y
- Poster [.ps]
- Esch, D.N., Connors, A., Karovska, M., & van Dyk, D.A., 2004, ApJ, 610, 1213
- 2004ApJ...610.1213E
- Kang, H., et al., 2003, SPD 34, 02.01
- 2003SPD....34.0201K
- Karovska, M., Esch, D., & van Dyk, D., 2003, HEAD 35, 22.29
- 2003HEAD...35.2229K
- Sourlas, N., et al., 2001, SCMA III, Eds. Eric D. Feigelson, G. Jogesh Babu, New York: Springer, ISBN 0-387-95546-1, 2003, p.489
- 2003sca..book..489S
- Kashyap, V., et al., 2001, SCMA III, Eds. Eric D. Feigelson, G. Jogesh Babu, New York: Springer, ISBN 0-387-95546-1, 2003, p.451
- 2003sca..book..451K
- Kang, H., et al., 2001, SCMA III, Eds. Eric D. Feigelson, G. Jogesh Babu, New York: Springer, ISBN 0-387-95546-1, 2003, p.449
- 2003sca..book..449K
- Hans, C., & van Dyk, D.A., 2001, SCMA III, Eds. Eric D. Feigelson, G. Jogesh Babu, New York: Springer, ISBN 0-387-95546-1, 2003, p.429
- 2003sca..book..429H
- Freeman, P.E, et al., 2001, SCMA III, Eds. Eric D. Feigelson, G. Jogesh Babu, New York: Springer, ISBN 0-387-95546-1, 2003, p.365
- 2003sca..book..365F
- van Dyk, D.A., 2001, SCMA III, Eds. Eric D. Feigelson, G. Jogesh Babu, New York: Springer, ISBN 0-387-95546-1, 2003, p.124
- 2003sca..book..124V
- van Dyk, D.A., 2001, SCMA III, Eds. Eric D. Feigelson, G. Jogesh Babu, New York: Springer, ISBN 0-387-95546-1, 2003, p.70
- 2003sca..book...70V
- van Dyk, D.A., 2001, SCMA III, Eds. Eric D. Feigelson, G. Jogesh Babu, New York: Springer, ISBN 0-387-95546-1, 2003, p.41
- 2003sca..book...41V
- Kashyap, V.L., & Siemiginowska, A., 2003, Chandra Newsletter, Vol. 10, p.16
- 2003ChNew..10...16K
- Kashyap, V.L., Drake, J.J., Guedel, M., & Audard, M., 2002, ApJ, 580, 1118
- 2002ApJ...580.1118K
- Protassov, R., van Dyk, D.A., Connors, A., Kashyap, V.L., & Siemiginowska, A., 2002, ApJ, 571, 545
- 2002ApJ...571..545P
- van Dyk, D.A., et al., 2001, AAS 199, 112.01
- 2001AAS...19911201V
- van Dyk, D.A., Connors, A., Kashyap, V.L., & Siemiginowska, A., 2001, ApJ, 548, 224
- 2001ApJ...548..224V
- Protassov, R., et al., 2000, AAS 197, 16.04
- 2000AAS...197.1604P
- Yu, Y., et al., 2000, HEAD 32, 16.10
- 2000HEAD...32.1610Y
- Yu, Y., et al., 2000, HEAD 32, 16.03
- 2000HEAD...32.1603Y
- Protassov, R.S, et al., 2000, AAS 196, 60.04
- 2000AAS...196.6004P
- Sourlas, E., et al., 2000, AAS 196, 54.02
- 2000AAS...196.5402S
- Protassov, R.S., & van Dyk, D.A., 1999, AAS 196, 54.01
- 2000AAS...196.5401P
- van Dyk, D.A., et al., 1999, AAS 194, 26.04
- 1999AAS...194.2604V
- van Dyk, D.A., et al., 1999, HEAD 31, 33.06
- 1999HEAD...31.3306V
- Esch, D., et al., 1999, HEAD 31, 33.05
- 1999HEAD...31.3305E
- Kashyap, V., & Drake, J.J., 1998, ApJ, 503, 450
- 1998ApJ...503..450K
- Siemiginowska, A., Elvis, M., Connors, A., Freeman, P., Kashyap, V., & Feigelson, E., 1997, SCMA II, Eds. C.J.Babu, E.Feigelson, p241
- 1997scma.conf..241S
- manuscript [.pdf]
Acknowlegements:
This material is based upon work
partially supported by NASA AISR grant NCC2-1206, and
National Science Foundation under Grant Nos. DSM 01-04129,
04-38240, and 04-06085 and by NASA Contract NAS8-39073 (CXC).
Any opinions, findings, and conclusions or recommendations
expressed in this material are those of the author(s) and
do not necessarily reflect the views of the National Science
Foundation.
Alanna Connors,
Alex Young,
Andreas Zezas,
Aneta Siemiginowska,
Brandon Kelly,
David Esch,
David van Dyk,
Epaminondas Sourlas,
Hosung Kang,
Hyunsook Lee,
James Chiang,
Jeff Scargle,
Jin Xu,
Jingchen Liu,
Nathan Stein,
Paul Baines,
Paul Edlefson,
Peter Freeman,
Rima Izem,
Rostislav Protassov,
Shandong Min,
Taeyoung Park,
Victoria Liublinska,
Vinay Kashyap,
Xiao-li Meng,
Yaming Yu