Skip to main content
The University of Kansas
  • myKU
  • Email
  • Blackboard
  • Enroll & Pay
  • KU Directory
  1. A
  2. B
  3. C
  4. D
  5. E
  6. F
  7. G
  8. H
  9. I
  10. J
  11. K
  12. L
  13. M
  14. N
  15. O
  16. P
  17. Q
  18. R
  19. S
  20. T
  21. U
  22. V
  23. W
  24. X
  25. Y
  26. Z
  • All
  • Academics
  • Athletics

Campus Map | Directions | Campuses | Buses | Parking

Information Technology | Jobs at KU

Finances

Tuition | Bill Payments | Scholarship Search
Financial Aid | Loans | Beak 'em Bucks

People Search

Search class sections | Online courses

Libraries | Hours & locations | Ask

Advising | Catalog | Tutors
Writing Center | Math help room
Finals Schedule | GPA Calculator

CMS Login: KU Users | Non-KU Users
  • KU Home
  • About KU
  • Admissions
  • Athletics
  • Alumni
  • Campuses
  • Social Media
  • Endowment
  • KU Today
Department of Physics and Astronomy
Department of Physics and Astronomy
College of Liberal Arts & Sciences

Search form

  • Home
  • About
    • From the Chair
    • Contact
    • Jobs
    • Newsletters
  • Academics
    • Handbook
    • Physics
      • Degrees
      • Tutoring Schedule (pdf)
      • Admission
      • Graduate Studies
    • Astronomy
      • Overview
      • Degrees
      • Brochure (pdf)
      • Graduate School
      • For High School Students
      • Scholarship Funds
      • Careers
      • Program history
        • 1988 Reunion
        • History to 1968 by Storer
        • Henry G. Horak
        • Pitt's Telescope
      • Give
        • Tombaugh Fund
      • Alumni
      • N.Wyman Storer Award
      • Links
      • Admission
    • Degrees
      • Astronomy Undergraduate Program
        • B.A.
          • Overview
          • Requirements
          • Suggested Schedule
            • 2014-2015
          • For High School Students
          • Scholarship Funds
          • Graduate School
          • Careers
          • Past Requirements
        • B.S.
          • Overview
          • Requirements
          • Suggested Schedule
            • 2014-2015
          • For High School Students
          • Scholarship Funds
          • Graduate School
          • Careers
          • Past Undergraduate Handbooks:
        • Minors
          • Astronomy Minor
          • Astrobiology Minor
          • Past Requirements
      • Physics Undergraduate Program
        • B.A.
          • Overview
          • Requirements
          • Suggested Schedule
            • UKanTeach Suggested Schedule
          • Past Requirements
        • B.S.
          • Overview
          • Requirements
          • Suggested Schedule
            • Pre-Medicine
            • Pre-Professional
            • Interdisciplinary Science
            • UKan Teach Pre-Professional
          • Past Requirements
        • Minor
          • Physics Minor
          • Past Requirements
        • Minors
      • Physics Graduate Program
        • General Graduate Program Info
          • Graduate Studies
          • How to Apply
          • Assistantships & Fellowships
          • Admission
          • Awards
          • Committees & Organizations
          • Enrollment & Grading
          • Graduate Advisor
          • Past Requirements
          • Bridge Program
          • Declaring an Advisor
          • Graduate Student Resources
        • Ph.D.
          • Overview
          • Residency Requirements
          • Graduate Teaching Assistantship Information
          • GTA Requirement
          • Milestones Towards Ph.D.
          • Course Requirements
          • Preliminary Candidacy
          • Comprehensive Exam
          • Post-Comprehensive Requirements
          • Final Oral Exam
          • Past Requirements
        • M.S.
          • Overview
          • Requirements
          • Subspecialty in Computational Physics and Astronomy
          • Past Requirements
        • Additional Requirements
          • Overview
          • Communication Skills
          • Individualized Plan of Study
          • Graduate Student Progress Tracking
          • Undergraduate Lab Requirement
      • Engineering Physics Program
        • B.S.
          • Overview
          • Past Requirements
    • Courses
      • Principal Courses
      • PHSX116
      • Course Frequency Chart
    • Advising
      • Past Undergraduate Handbooks
    • Seminars/Colloquia
    • Scholarships & Awards
      • Scholarships and Honors
        • Graduate Student Funding Opportunities
      • Scholars
    • Get Info
  • Admission
    • Admission
  • Research
    • Paper of the Week
    • Clean Room
    • MLO Telescope
    • Quarked »
    • Research Experience Program »
  • People
    • Faculty
      • Adjunct/Courtesy Faculty
      • Emeritus Faculty
    • Administration
    • Staff
    • Graduate Students
    • PostDocs/Research Associates
    • Awards/Honors
    • Department Roster - Spread Sheet
  • Alumni & Friends
    • Alumni Advisory Board
    • Alumni News
      • Submit Alumni News
    • Newsletters
  • Resources
    • Demos
      • Request Physics & Astronomy Demos
    • Jobs
    • Machine Shop »
    • Tutor Room
    • The Mr. Bob Show »
    • Society of Phys Students »
    • MARAC
    • AAL
      • Events
      • Teacher Resources
      • Observing Tools
      • Membership
      • Facilities/Telescope Loaner
      • Purpose
      • Newsletter
      • WEBSITES
      • Organizations
      • Meetings
  • How You Can Help
    • How You Can Help
  • Diversity, Equity, & Inclusion
  • Giving
    • Annual Donor Honor Roll
    • KU Endowment »
    • Mr. Bob Challenge
  • Menu
    • Home
    • About
      • From the Chair
      • Contact
      • Jobs
      • Newsletters
    • Academics
      • Handbook
      • Physics
        • Degrees
        • Tutoring Schedule (pdf)
        • Admission
        • Graduate Studies
      • Astronomy
        • Overview
        • Degrees
        • Brochure (pdf)
        • Graduate School
        • For High School Students
        • Scholarship Funds
        • Careers
        • Program history
          • 1988 Reunion
          • History to 1968 by Storer
          • Henry G. Horak
          • Pitt's Telescope
        • Give
          • Tombaugh Fund
        • Alumni
        • N.Wyman Storer Award
        • Links
        • Admission
      • Degrees
        • Astronomy Undergraduate Program
          • B.A.
            • Overview
            • Requirements
            • Suggested Schedule
              • 2014-2015
            • For High School Students
            • Scholarship Funds
            • Graduate School
            • Careers
            • Past Requirements
          • B.S.
            • Overview
            • Requirements
            • Suggested Schedule
              • 2014-2015
            • For High School Students
            • Scholarship Funds
            • Graduate School
            • Careers
            • Past Undergraduate Handbooks:
          • Minors
            • Astronomy Minor
            • Astrobiology Minor
            • Past Requirements
        • Physics Undergraduate Program
          • B.A.
            • Overview
            • Requirements
            • Suggested Schedule
              • UKanTeach Suggested Schedule
            • Past Requirements
          • B.S.
            • Overview
            • Requirements
            • Suggested Schedule
              • Pre-Medicine
              • Pre-Professional
              • Interdisciplinary Science
              • UKan Teach Pre-Professional
            • Past Requirements
          • Minor
            • Physics Minor
            • Past Requirements
          • Minors
        • Physics Graduate Program
          • General Graduate Program Info
            • Graduate Studies
            • How to Apply
            • Assistantships & Fellowships
            • Admission
            • Awards
            • Committees & Organizations
            • Enrollment & Grading
            • Graduate Advisor
            • Past Requirements
            • Bridge Program
            • Declaring an Advisor
            • Graduate Student Resources
          • Ph.D.
            • Overview
            • Residency Requirements
            • Graduate Teaching Assistantship Information
            • GTA Requirement
            • Milestones Towards Ph.D.
            • Course Requirements
            • Preliminary Candidacy
            • Comprehensive Exam
            • Post-Comprehensive Requirements
            • Final Oral Exam
            • Past Requirements
          • M.S.
            • Overview
            • Requirements
            • Subspecialty in Computational Physics and Astronomy
            • Past Requirements
          • Additional Requirements
            • Overview
            • Communication Skills
            • Individualized Plan of Study
            • Graduate Student Progress Tracking
            • Undergraduate Lab Requirement
        • Engineering Physics Program
          • B.S.
            • Overview
            • Past Requirements
      • Courses
        • Principal Courses
        • PHSX116
        • Course Frequency Chart
      • Advising
        • Past Undergraduate Handbooks
      • Seminars/Colloquia
      • Scholarships & Awards
        • Scholarships and Honors
          • Graduate Student Funding Opportunities
        • Scholars
      • Get Info
    • Admission
      • Admission
    • Research
      • Paper of the Week
      • Clean Room
      • MLO Telescope
      • Quarked »
      • Research Experience Program »
    • People
      • Faculty
        • Adjunct/Courtesy Faculty
        • Emeritus Faculty
      • Administration
      • Staff
      • Graduate Students
      • PostDocs/Research Associates
      • Awards/Honors
      • Department Roster - Spread Sheet
    • Alumni & Friends
      • Alumni Advisory Board
      • Alumni News
        • Submit Alumni News
      • Newsletters
    • Resources
      • Demos
        • Request Physics & Astronomy Demos
      • Jobs
      • Machine Shop »
      • Tutor Room
      • The Mr. Bob Show »
      • Society of Phys Students »
      • MARAC
      • AAL
        • Events
        • Teacher Resources
        • Observing Tools
        • Membership
        • Facilities/Telescope Loaner
        • Purpose
        • Newsletter
        • WEBSITES
        • Organizations
        • Meetings
    • How You Can Help
      • How You Can Help
    • Diversity, Equity, & Inclusion
    • Giving
      • Annual Donor Honor Roll
      • KU Endowment »
      • Mr. Bob Challenge
  • Search

    • Search form

  • Home
  • Crossfield, Ian

Ian J. M. Crossfield

Assistant Professor
ianc@ku.edu
Primary office:
2058D Malott Hall

Summary
  • Bio

Research Focus: Astronomy, Exoplanets


Department News
  • October 18, 2019
    Quarks: The Building Blocks of Matter
  • October 16, 2019
    Is There Life Outside Our Solar System? - Unwinding With Astrophysicist, Jennifer Delgado
  • September 25, 2019
    Research suggests there’s a better way to teach physics to university students
Read more
Department Communications
  • Colloquia
  • Seminars
  • Public Events
  • AAL
  • MARAC2020
Newsletters
  • Department
  • Alumni
Videos
  • Mr. Bob Show
  • Colloquia
  • Alumni Remembrances
  • Public Lectures
Calendar of Events
Class Permissions
Code of Conduct
Anonymous Suggestion/Comment Form
KU Concealed Carry Policy
Paper of the Week

Supernova triggers for end-Devonian extinctions
Brian D. Fields, Adrian L. Melott, John Ellis, Adrienne F. Ertel, Brian J. Fry, Bruce S. Lieberman, Zhenghai Liu, Jesse A. Miller, and Brian C. Thomas

See previous papers

Mr. Bob T-Shirts: Lab Support


That's MISTER Bob to you.

Contact Department of Physics and Astronomy
physics@ku.edu
785-864-4626
Department of Physics & Astronomy
1082 Malott,1251 Wescoe Hall Dr.
Lawrence, KS 66045
   
KU signature

Jayhawk icon

  • Academics
  • Accessible KU
  • Admissions
  • Alumni

  • Athletics
  • Campuses
  • Giving
  • Jobs
  • Safety
Contact KU
Lawrence, KS | Maps

The University of Kansas prohibits discrimination on the basis of race, color, ethnicity, religion, sex, national origin, age, ancestry, disability, status as a veteran, sexual orientation, marital status, parental status, gender identity, gender expression, and genetic information in the university's programs and activities. Retaliation is also prohibited by university policy. The following persons have been designated to handle inquiries regarding the nondiscrimination policies and are the Title IX coordinators for their respective campuses: Director of the Office of Institutional Opportunity & Access, IOA@ku.edu, Room 1082, Dole Human Development Center, 1000 Sunnyside Avenue, Lawrence, KS 66045, 785-864-6414, 711 TTY (for the Lawrence, Edwards, Parsons, Yoder, and Topeka campuses); Director, Equal Opportunity Office, Mail Stop 7004, 4330 Shawnee Mission Parkway, Fairway, KS 66205, 913-588-8011, 711 TTY (for the Wichita, Salina, and Kansas City, Kansas medical center campuses).

Kansas Degree Statistics