No subject

Sun Aug 3 23:20:45 PDT 2014

ck Holes: Unexpected Plasmas, Relevant and Laboratory Based Theories=20

The in situ exploration of the Heliosphere has revealed the existence of un=
expected kinds of plasmas and magnetic field configurations around the most=
 distant planets (e.g. Uranus and Neptune) for which reliable theories can =
be formulated and be of help to envision the environments of a variety of r=
ecently discovered exo-planets. On larger scales, radically different kinds=
 of plasmas have been found: in particular plasmas with =E2=80=9Ctemperatur=
es in the tens of keV are observed to be the main visible component of Gala=
xy Clusters, while =CE=B3-ray emitting plasma structures (=E2=80=9Cbubbles=
=E2=80=9D) have been seen to emerge from the disk of Our Galaxy with dimens=
ions of the same order as those characterizing the Galaxy. Although the the=
ory of the plasmas that can surround pulsars has a long history, the fact t=
hat the plasmas on the surface of pulsars can have inhomogeneous features (=
such as hot spots) and dynamics has gained attention recently. Given the ve=
ry high magnetic fields involved, the role of the electron thermal conducti=
vity anisotropy is shown to be an important factor in these. There are impo=
rtant issues to be resolved in order to envision the plasmas that can surro=
und black holes. These involve the structures that can form, such as rings =
and 3D spirals, the kind of transport of angular momentum that is needed to=
 allow plasma accretion on the black hole, etc. In fact, laboratory experim=
ents on high-energy plasmas have cast new light on basic processes that inc=
lude the nature of angular momentum transport not described by a diffusion =
equation, magnetic reconnection events and associated production of high-en=
ergy particles, self-organization processes, etc.=20

Friday, May 29, 2015=20

Room 6704 Geology=20

3:30 - 5:00 PM=20

Refreshments served after the seminar in Room 6850.=20

In-Charge=20
M. Velli=20

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div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><=
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div><div><div><div><div><div><div><div dir=3D"ltr"><div style=3D"color: #00=
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rgin: 0px;"><b><span><span style=3D"font-family: 'Times New Roman';" data-m=
ce-style=3D"font-family: 'Times New Roman';"><span style=3D"font-size: 26pt=
;" data-mce-style=3D"font-size: 26pt;">SPACE PHYSICS SEMINAR</span></span><=
/span></b><b><span></span></b></p><p align=3D"center" style=3D"font-size: 1=
0pt; font-family: Helvetica, Arial, sans-serif; margin: 0px;" data-mce-styl=
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x;"><b><span><span style=3D"font-family: 'Times New Roman';" data-mce-style=
=3D"font-family: 'Times New Roman';"><span style=3D"font-size: 14pt;" data-=
mce-style=3D"font-size: 14pt;">DEPARTMENT OF EARTH, PLANETARY, AND SPACE SC=
IENCES</span></span></span></b><span></span></p><p align=3D"center" style=
=3D"font-size: 10pt; font-family: Helvetica, Arial, sans-serif; margin: 0px=
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erif; margin: 0px;"><b><span><span style=3D"font-family: 'Times New Roman';=
" data-mce-style=3D"font-family: 'Times New Roman';"><span style=3D"font-si=
ze: 14pt;" data-mce-style=3D"font-size: 14pt;">DEPARTMENT OF ATMOSPHERIC AN=
D OCEANIC SCIENCES</span></span></span></b><span></span></p><p align=3D"cen=
ter" style=3D"font-size: 10pt; font-family: Helvetica, Arial, sans-serif; m=
argin: 0px;" data-mce-style=3D"font-size: 10pt; font-family: Helvetica, Ari=
al, sans-serif; margin: 0px;"><b><span><span style=3D"font-family: 'Times N=
ew Roman';" data-mce-style=3D"font-family: 'Times New Roman';"><span style=
=3D"font-size: 14pt;" data-mce-style=3D"font-size: 14pt;">UNIVERSITY OF CAL=
IFORNIA, LOS ANGELES</span></span></span></b><span></span></p><p align=3D"c=
enter" style=3D"font-size: 10pt; font-family: Helvetica, Arial, sans-serif;=
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e=3D"font-size: 14pt;" data-mce-style=3D"font-size: 14pt;">(EPSS M288A,&nbs=
p;<b><span><span><span style=3D"font-size: 14pt;" data-mce-style=3D"font-si=
ze: 14pt;">AOS M275A</span></span></span></b>)</span></span></span></b></p>=
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t-family: 'Times New Roman';"><span style=3D"font-size: 14pt;" data-mce-sty=
le=3D"font-size: 14pt;"><span style=3D"font-size: x-large; font-family: 'ti=
mes new roman', 'new york', times, serif;" data-mce-style=3D"font-size: x-l=
arge; font-family: 'times new roman', 'new york', times, serif;">Bruno Copp=
i</span><br></span></span></b></p><p align=3D"center" style=3D"font-family:=
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ily: 'Times New Roman'; font-size: 18.6666660308838px;"><b>MIT</b></span></=
p><p align=3D"center" style=3D"font-size: 10pt; font-family: Helvetica, Ari=
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