Space Grant Consortium - University of Wisconsin - Green Bay

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SN 2001ig in NGC 7424 Like SN2008ax, SN2001ig does not seem to follow the normal parameterized model in the radio spectrum. As the radio flux decays we see many fluctuations in its evolution that indicate that the mass is not uniformly distributed throughout the star. We predict that the bumps in the radio light curve are caused by a nearby star that is pulling in some of the supernova remnant as it is ejected outward. Figure 4 below shows the radio flux density of SN2001ig versus time since explosion; the x-axis represents the log time since the explosion occurred (in days), and the yaxis represents the electromagnetic flux density of the source (measured in milli-Janskys). We also note that the decay pattern of SN2001ig occurs much faster than normal. Though it did not evolve as fast as SN2008ax, SN2001ig has already begun the downward slope of the curve for all wavelengths after about 300 days, indicating a thinner solar wind (see Figure 4). Figure 4: Radio light curve of SN 2001ig in NGC 7424 Conclusions It is thought that Type IIb supernovae may be the link between Type Ib/c and Type II supernovae. In our analysis, we are seeing two different variations of Type IIb supernovae; SN1993J shows a sudden drop-off in radio flux density after the initial steady decline while SN2008ax and SN2001ig show bumps in the radio light curve that are not explained by the standard parameterized model. Additionally, more testing is needed on a bigger sample of Type IIb supernovae to determine if Type IIb supernovae are an evolutionary link between Type Ib/c and Type II supernovae and if there are different types of Type IIb supernovae. 26
References Chevalier, R. A., “Interaction of supernovae with circumstellar matter,” 1990, Supernovae, p. 91 Chevalier, R. A., “The radio and X-ray emission from type II supernovae,” 1982, Astrophysical Journal, Vol. 259, pg. 302-310 Stockdale, C. J.; Kaster, B. C.; Kelley, M. T.; Panagia, N.; Sramek, R. A.; Van Dyk, S. D.; Weiler,  K.  W.;  Williams,  C.  L.  M.,  “Recent  Type  II  Radio  Supernovae,”  2006c,  Kavli  Institute  for  Theoretical Physics (KITP) Conference: Supernova and Gamma‐Ray Burst Remnants (Feb  6‐10, 2006) Coordinators: Roger Chevalier, Una Hwang, Martin Laming    Stockdale, C. J.; Williams, C. L.; Weiler, K. W.; Panagia, N.; Sramek, R. A.; Van Dyk, S. D.; Kelley, M. T., “The Radio Evolution of SN 2001gd,” 2007, Astrophysical Journal, Volume 671, pp. 689-694   Weiler,  K.,  Panagia,  N.,  Montes,  M.,  Sramek,  R.,  “Radio  Emission  from  Supernovae  and  Gamma‐Ray Bursters”, 2002, Annual Review Astrophysics, p. 393    Woosley, S. E., Pluto, P. A., Martin, P. G., & Weaver, T. A., “Supernova 1987A in the Large  Magellanic  Cloud  ‐  The  explosion  of  an  approximately  20  solar  mass  star  which  has  experienced mass loss?” 1987, Astrophysical Journal, Vol. 318, pg. 664 27
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Space Grant Consortium wisconsin UN
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THE CASSINI ENCOUNTER WITH THE GEM
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Th he proceedinngs of our 199th Ann
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Wisconsin Space Grant Consortium Un
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Part 3: NASA Reduced Gravity Progra
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EAA Women Soar - You Soar, Lee Siud
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Elijah High Altitude Balloon Projec
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Our experience with the HALO II lau
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which had been a problem in the pas
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Figure 6: 3-D GPS Generated Track o
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Results The seeds tested in the lab
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hour as we assumed the flight in th
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Experimental Results There are two
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A series of tests were done in a co
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380 360 340 320 23.3 Temp. (Celsius
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First Place, Non-Engineering: Schmi
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of the basis for fin designs came f
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ejection charge from the motor fire
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using rip-stop nylon cloth. To atta
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Post-flight recovery. A field searc
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Thus, it is believed that the main
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[2] Public Missiles Ltd. Frequently
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Design Features The chief requireme
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The joint between the dart and the
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Area dramatically influenced by flo
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Altitude [ft] 6000 5000 4000 3000 2
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though a strong crosswind was prese
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Our Design Our rocket uses the basi
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e easily recovered. Bong recreation
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Performance Characteristics of Pred
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Background and Context: Student Roc
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The Rocky Mountain Miners’ compet
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19th Annual Conference Part Three N
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The angle of repose of a granular m
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Experiment Design The experiment co
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on the ground and in the Weightless
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measurements for the 1 − g data.
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[ImageJ, 2008] Image Analysis Softw
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Dynamics Characterization of the El
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Figure 1 - A calibration equation f
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Wire A secondary investigation into
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[1] Taminger, K. M. B.; and Hafley,
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Introduction The analysis of wake v
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Figure 2: Screen I mage o f G UI. T
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References ¹ Burnham, D.C., and Ha
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Validation of Novel Rigid Body Fric
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forces is implemented in the popula
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Figure 2. CAD representation of a t
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Results Figure 5. Assembled hydraul
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References Anitescu, M. (2006). "Op
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Multi-stage Joule-Thomson cycles ar
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significant change in total compres
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The enthalpy (h3) of the 2 nd stage
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UA m� ⎛ ε −1 ⎞ ( c nd c st
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educed, the temperature range that
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7. Lemmon, E. W.; Huber, M. L.; McL
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Throughout each of the run cycles,
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and heater adjusted to accommodate
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Phaeton Mast Dynamics Mechanical Sy
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exposure to the FEMAP with NASTRAN
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The irregularity in the plots above
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inversion of a particular matrix, t
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clarified. Additionally, the PMD ki
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A. Abstract For hardware to be flig
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should be performed at the JWST obs
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B. Attenuation and Uncertainty Shoc
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Detector Array and ROIC SCA Mount L
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Detector Shock Environment The leve
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Orbiter (MRO), Moon Mineralogy Mapp
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Page 168 and 169: High Resolution Radiometer (AVHRR)
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Page 172 and 173: References Behnke, C., 2005: Synopt
Page 174 and 175: Figure 3 Figure 3 contains base ref
Page 177 and 178: A Comparative Study of Type IIb Sup
Page 179 and 180: Fig. 3.— Cartoon Image of SN blas
Page 181 and 182: Fig. 4.— Light curve of SN 2008bo
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Page 201: SN 2008ax in NGC 4490 SN2008ax is a
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fluctuating humidity, drying winds,
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western border of the Arkansas Rive
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adjusted to less than .4millisecond
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Cacti Experiment 18 has produced 10
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13. What N decomposer's are needed
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Abstract Toxic Offgassing Analysis
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The chambers were sealed and baked
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Tables 4 and 5 show offgassing comp
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there was no dichlorobenzene peak.
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eneficiation reagents. Ionic liquid
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Figure 3: Current versus voltage da
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Abstract New Initiatives in the Pro
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was noticed above the gel. A discol
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delicate structures (hairs). N o fu
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and A. Y. Rozanov, Eds., SPIE, Vol.
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Combining Writing Across the Curric
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But the study also reported a consi
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Educators’ Aerospace Workshop for
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2008-2009 Evaluation Educators’ A
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Some comments from participants 200
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The cost of a one credit graduate c
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EAA WOMEN SOAR - YOU SOAR Dr. Lee J
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� Incorporated the technology res
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Evaluation Results: At the conclusi
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Educational Standards: The National
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curriculum development, to provide
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and applications of GIS technology
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• A significant new outcome for t
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The design of this project and appl
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Activities at the workshop involved
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to give our students a series of PR
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In the past we have not focused on
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Providing High School Students with
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that th e current generations of s
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instruction a s pa rt o f t heir ow
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Wisconsin Space Grant Consortium &
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11:45-1:00 pm Lunch *** Concurrent
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Moderator: David B lock, A ssociate
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Second Place, E ngineering, Drew an
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Wisconsin Space Grant Consortium
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