SI:CfA:HEA

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

Software | Activities | Bibliography | Astro jargon | Stat jargon | People | Mailing-List | Internal
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Software

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

Courses, Workshops, Seminars, Special Sessions, Conferences


Conference Proceedings and Journal Articles

Xu, J., van Dyk, D.A., Kashyap, V.L., Siemiginowska, A., Connors, A., Drake, J., Meng, X.-L., Ratzlaff, P., and Yu, Y., A Fully Bayesian Method to Simultaneously Fit Calibration Products and Model Parameters in X-ray Spectral Analyses, 2014, ApJ, submitted
manuscript [.pdf]
Kashyap, V.L., pyBLoCXS: Strategy to deal with known errors in effective areas and Demo, 2014, IACHEC 2014, 12 May 2014
Slides [.pdf]
Demo walkthrough
Stenning, D.C., Lee, T.C.M., van Dyk, D.A., Kashyap, V., Sandell, J., & Young, C.A., Morphological feature extraction for statistical learning with applications to solar image data, 2013, Statistical Analysis and Data Mining, Vol. 6, Issue 4, p329
Abstract
Blocker, A.W., & Protopapas, P., Semi-parametric Robust Event Detection for Massive Time-Domain Databases, 2013, SCMA V
arXiv:1301.3027
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]

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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

SI:CfA:HEA