History


Perkins' Contributions






Partial phase of the Sept. 27th, 2015 total lunar eclipse taken at Perkins Observatory. Coutecy of Dr. Ellen Arnold of Ohio Wesleyan University.
Recent Published Research
Title:
Starspots on LO Pegasi, 2006-2014
Authors:
Harmon, Robert O.; Berry, Dominique; Chalmers, Mark; Denison, Josh; Stevens, Don; Yuhas, Kaylee
Affiliation:
AA(Ohio Wesleyan University), AB(Florida A&M University), AC(Ohio Wesleyan University), AD(Ohio Wesleyan University), AE(Ohio Wesleyan University), AF(Baldwin Wallace University)
Publication:
American Astronomical Society, AAS Meeting #225, #343.20
Publication Date:
01/2015
Origin:
AAS
Abstract Copyright:
(c) 2015: American Astronomical Society
Bibliographic Code:
2015AAS...22534320H

Title:
Starspots on LO Pegasi, 2006-2013
Authors:
Harmon, Robert O.; Cole, B.; Denison, J.; Gray, K.
Affiliation:
AA(Ohio Wesleyan University), AB(Wesleyan University), AC(Ohio Wesleyan University), AD(Whitman College)
Publication:
American Astronomical Society, AAS Meeting #223, #156.05
Publication Date:
01/2014
Origin:
AAS
Abstract Copyright:
(c) 2014: American Astronomical Society
Bibliographic Code:
2014AAS...22315605H

Title:
Starspot Modulation of BVRI Light Curves of LO Pegasi from 2012 June-October
Authors:
Harmon, Robert O.; Avril, R.; Rossi De La Fuente, E.; Brechtel, C. E.
Affiliation:
AA(Ohio Wesleyan Univ), AB(Westminster College), AC(University of Michigan-Dearborn), AD(Ohio Wesleyan Univ)
Publication:
American Astronomical Society, AAS Meeting #221, #354.13
Publication Date:
01/2013
Origin:
AAS
Abstract Copyright:
(c) 2013: American Astronomical Society
Bibliographic Code:
2013AAS...22135413H

Title:
Surface Maps of LO Pegasi May-July 2011 Generated via BVRI Light Curve Inversion
Authors:
Harmon, Robert O.; Johns Vidaurri, P.; Krug, S.
Affiliation:
AA(Ohio Wesleyan Univ), AB(Northern Arizona Univ), AC(Univ. of Notre Dame)
Publication:
American Astronomical Society, AAS Meeting #219, #433.11
Publication Date:
01/2012
Origin:
AAS
Abstract Copyright:
(c) 2012: American Astronomical Society
Bibliographic Code:
2012AAS...21943311H

Title:
A Study of Differential Rotation on II Pegasi via Photometric Starspot Imaging
Authors:
Roettenbacher, Rachael M.; Harmon, Robert O.; Vutisalchavakul, Nalin; Henry, Gregory W.
Affiliation:
AA(Department of Physics and Astronomy, Ohio Wesleyan University, 61 S. Sandusky St., Delaware, OH 43015, USA; Department of Physics, Lehigh University, 16 Memorial Drive East, Bethlehem, PA 18015, USA roharmon@owu.edu), AB(Department of Physics and Astronomy, Ohio Wesleyan University, 61 S. Sandusky St., Delaware, OH 43015, USA), AC(Department of Physics and Astronomy, Ohio Wesleyan University, 61 S. Sandusky St., Delaware, OH 43015, USA; Department of Astronomy, The University of Texas at Austin, Austin, TX 78713, USA), AD(Center of Excellence in Information Systems, Tennessee State University, 3500 John A. Merritt Blvd., Box 9501, Nashville, TN 37209, USA)
Publication:
The Astronomical Journal, Volume 141, Issue 4, article id. 138, 21 pp. (2011). (AJ Homepage)
Publication Date:
04/2011
Origin:
IOP
Astronomy Keywords:
binaries: close, stars: activity, stars: imaging, stars: individual: II Pegasi, starspots, stars: variables: general
DOI:
10.1088/0004-6256/141/4/138
Bibliographic Code:
2011AJ....141..138R

Title:
Starspots on LO Pegasi, May-July 2010
Authors:
Harmon, Robert O.; Robinson, R.; Roy, A.
Affiliation:
AA(Ohio Wesleyan University), AB(Michigan State University), AC(Ohio Wesleyan University)
Publication:
American Astronomical Society, AAS Meeting #217, #342.08; Bulletin of the American Astronomical Society, Vol. 43, 2011
Publication Date:
01/2011
Origin:
AAS
Abstract Copyright:
(c) 2011: American Astronomical Society
Bibliographic Code:
2011AAS...21734208H

Title:
Photometric Imaging of Starspots on LO Pegasi in May, June and July of 2009
Authors:
Harmon, Robert O.; Miller, J.; Richard, A.
Affiliation:
AA(Ohio Wesleyan University), AB(Ohio Wesleyan University), AC(Muskingum University)
Publication:
American Astronomical Society, AAS Meeting #215, #418.09; Bulletin of the American Astronomical Society, Vol. 42, p.275
Publication Date:
01/2010
Origin:
AAS
Bibliographic Code:
2010AAS...21541809H

Title:
Stella Surface Imaging of LO Pegasi via Light-Curve Inversion
Authors:
Miller, Jessie; Richard, Andrea; Harmon, Robert
Publication:
American Physical Society, Joint Fall 2009 Meeting of the Ohio Sections of the APS and AAPT, October 9-10, 2009, abstract #P1.004
Publication Date:
10/2009
Origin:
APS
Bibliographic Code:
2009APS..OSF.P1004M

Title:
A Study of Differential Rotation on II Pegasi Using Starspot Imaging
Authors:
Roettenbacher, Rachael M.; Harmon, R. O.; Vutisalchavakul, N.; Henry, G.
Affiliation:
AA(Ohio Wesleyan University), AB(Ohio Wesleyan University), AC(Ohio Wesleyan University), AD(Tennessee State University)
Publication:
American Astronomical Society, AAS Meeting #213, #434.07; Bulletin of the American Astronomical Society, Vol. 41, p.304
Publication Date:
01/2009
Origin:
AAS
Bibliographic Code:
2009AAS...21343407R

Title:
Stellar Surface Image of LO Pegasi via Light-curve Inversion
Authors:
Harmon, Robert O.; Moore, C.; Decker, R.
Affiliation:
AA(Ohio Wesleyan Univ), AB(Bucknell University), AC(Ohio Wesleyan Univ)
Publication:
American Astronomical Society, AAS Meeting #213, #434.06; Bulletin of the American Astronomical Society, Vol. 41, p.304
Publication Date:
01/2009
Origin:
AAS
Bibliographic Code:
2009AAS...21343406H

Title:
Stellar Surface Imaging of LO Pegasi
Authors:
Decker, Rachel; Moore, Conrad; Harmon, Robert
Publication:
American Physical Society, 2008 Joint Meeting of the APS Ohio-Region Section, the AAPT Southern Ohio Section, and the ACS Dayton-Section, October 10-11, 2008, abstract #P1.003
Publication Date:
10/2008
Origin:
APS
Bibliographic Code:
2008APS..OSF.P1003D

Title:
Imaging Starspots on LO Pegasi via Light-curve Inversion
Authors:
Harmon, Robert O.; Deskins, R.; Vutisalchavakul, N.
Affiliation:
AA(Ohio Wesleyan Univ), AB(East Tennessee State University), AC(Ohio Wesleyan Univ)
Publication:
American Astronomical Society, AAS Meeting #211, #60.07; Bulletin of the American Astronomical Society, Vol. 39, p.844
Publication Date:
12/2007
Origin:
AAS
Bibliographic Code:
2007AAS...211.6007H

Title:
Imaging Starspots on II Pegasi via Light-curve Inversion
Authors:
Vutisalchavakul, Nalin; Deskins, Ryan; Harmon, Robert
Publication:
American Physical Society, Fall 2007 Meeting of the Ohio-Region Section of APS, October 19-20, 2007, abstract #P1.013
Publication Date:
10/2007
Origin:
APS
Bibliographic Code:
2007APS..OSF.P1013V

Title:
A Photometric Study of Starspot Evolution on HIP 106231
Authors:
Harmon, Robert O.; Roettenbacher, R. M.
Affiliation:
AA(Ohio Wesleyan University), AB(Ohio Wesleyan University)
Publication:
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #29.06; Bulletin of the American Astronomical Society, Vol. 38, p.942
Publication Date:
12/2006
Origin:
AAS
Bibliographic Code:
2006AAS...209.2906H

Title:
Surface Imaging of HIP 106231 via Light Curve Inversion
Authors:
Roettenbacher, Rachael; Harmon, Robert
Publication:
American Physical Society, Ohio Section of the APS Fall Meeting, October 13-14, 2006, abstract #P.005
Publication Date:
10/2006
Origin:
APS
Bibliographic Code:
2006APS..OSF..P005R

Title:
Spot topography of BD+22o 4409 (LO Peg) using Matrix Light-curve Inversion
Authors:
Harmon, R. O.; Saranathan, V.
Affiliation:
AA(Ohio Wesleyan University), AB(Ohio Wesleyan University)
Publication:
American Astronomical Society Meeting 205, #14.10; Bulletin of the American Astronomical Society, Vol. 36, p.1361
Publication Date:
12/2004
Origin:
AAS
Bibliographic Code:
2004AAS...205.1410H

Title:
Starspots on AP063 and AP117 Imaged via Matrix Light-curve Inversion
Authors:
Harmon, R. O.; Cademartori, E. A.; Terndrup, D. M.
Affiliation:
AA(Ohio Wesleyan University), AB(Ohio Wesleyan University), AC(Ohio State University)
Publication:
American Astronomical Society Meeting 203, #83.09; Bulletin of the American Astronomical Society, Vol. 35, p.1339
Publication Date:
12/2003
Origin:
AAS
Bibliographic Code:
2003AAS...203.8309H

Title:
Minor Planet Observations [H69 Ohio Wesleyan University]
Authors:
Stein, A.; Harmon, R.; Frank, D.; Perera, C.
Publication:
Minor Planet Circular 48910, 4 (2003)
Publication Date:
06/2003
Origin:
MPC
Bibliographic Code:
2003MPC..48910...4S

Title:
Imaging Stellar Surfaces via Matrix Light-Curve Inversion
Authors:
Harmon, Robert O.; Crews, Lionel J.
Affiliation:
AA(Department of Physics and Astronomy, Ohio Wesleyan University, Delaware, OH 43015 roharmon@cc.owu.edu), AB(Department of Geology, Geography, and Physics, University of Tennessee at Martin, Martin, TN 38238 lcrews@utm.edu)
Publication:
The Astronomical Journal, Volume 120, Issue 6, pp. 3274-3294. (AJ Homepage)
Publication Date:
12/2000
Origin:
UCP
Astronomy Keywords:
Stars: Activity, Stars: Imaging, Stars: Spots
DOI:
10.1086/316882
Bibliographic Code:
2000AJ....120.3274H

Page Top