수원출장연애인급╊수원외국인출장만남◁수원출장아가씨➹수원출장샵추천▄수원출장샵예약↤수원출장만족보장

서울출장서비스♧서울외국인출장만남◑서울출장가격➸서울출장샵후기▥서울출장최강미녀♭서울출장만남

Theoretical astrophysics; stellar and planetary system formation; extrasolar planets formation and detection

서울출장서비스┠서울출장연애인급↺서울동출장마사지⇄서울출장샵☭서울출장안마추천➹서울출장샵예약포항

B.S., Physics, University of South Florida, 1973 M.A., Physics, University of California, Santa Barbara, 1975 Ph.D., Physics, University of California, Santa Barbara, 1979

서울출장서비스▥서울오피♈서울출장샵예약↬서울출장최고시⇇서울출장맛사지┶서울출장색시미녀언니

수원출장연애인급◆수원출장마사지♥수원출장최고시♂수원출장샵추천☍수원출장미인아가씨☆수원동출장마사지

Meet DTM Astrophysicist, Alan Boss!
This image shows the equatorial density - after 373 years - for a protoplanetary disk with a mass 10% that of the Sun. The formation of a multiple-Jupiter mass clump can be seen as a tiny white dot at 12 o'clock (not to scale). The region has a radius of 20 AU. The surface density in this relatively low-mass disk is comparable to that required for gas giant planet formation by the core accretion mechanism.

Alan Boss' theoretical research includes the formation of binary and multiple stars, triggered collapse of the presolar cloud, mixing and transport processes in protoplanetary disks, including thermal processing of particles during their journeys, and the formation of gas giant and ice giant protoplanets. His observational works centers on the Carnegie Astrometric Planet Search project, which has been underway for the last decade at Carnegie's Las Campanas Observatory in Chile.공주출장샵

  • 안동역출장안마(카톡:mss41)【mss41.com】콜걸출장마사지8콜걸만남안동O2F출장안마추천출장몸매최고안동Oqw☊안동Xh출장샵예약출장몸매최고2018-12-13-04-09출장여대생2Yr☎오피걸오피안동⊙
  • 태백출장아가씨익산출장업계위『카톡:xo779』【xo779.com】출장외국인2018-12-13-04-09⇡익산♧역출장안마안마╋익산0↧익산익산익산익산동출장마사지오피걸익산
  • 속초콜걸샵
  • 익산출장마사지【카톡:up5829】《up5829.com》♘오피익산T☟☆출장샵예약포항출장서비스bVx출장최고시익산출장오쓰피걸익산출장만족보장pP➳익산익산출장샵추천u0w2018-12-13-04-09
  • 구미출장안마
  • 경산콜걸출장안마(카톡:up5829)【up5829.com】◐◎경산경산↺출장색시미녀언니경산경산2018-12-13-04-09◇경산출장시콜걸Y경산‿경산◤
  • 동해출장샵예약군산출장안마

    While fragmentation is universally recognized as the dominant formation mechanism for binary and multiple stars, there are still major questions remaining to be answered. The most important of these is the role of magnetic fields. Along with Sandy Keiser, Boss has been studying the collapse of individual molecular cloud cores with a MHD code, Enzo, in order to constrain the chances for binary and multiple star system formation. Enzo is an adaptive mesh refinement (AMR) code, giving it the flexibility needed to follow binary fragments. These calculations will also help to define which cloud cores are likely to collapse to form single stars, such as our Sun.

    A supernova shock front has been considered the most attractive mechanism for introducing short-lived radioisotopes (SLRIs) into the solar nebula. Along with Sandy Keiser, Boss has been using the FLASH code to study the problem of simultaneous triggering and injection. FLASH is also an AMR code, with a special strength in following shock waves. Boss has shown that FLASH 2D and 3D models support the supernova trigger hypothesis, over, e.g., the AGB star hypothesis for the origin of SLRIs, because thin supernova shocks are better at injecting SLRIs than the thick planetary nebula winds produced by AGB stars. Boss is currently running 3D models with FLASH, including the effects of target cloud rotation, to learn to what extent injection occurs into a protoplanetary disk formed as a result of triggered collapse.제천출장맛사지

  • 안산콜걸
  • 정읍콜걸샵☊성남콜걸샵◐(천안출장샵후기〖카톡:do26〗[doo26.com]●천안2018-12-13-04-09천안천안╥↷역출장안마출장샵후기⇖천안출장최고시▶☢4p✙콜걸만남흥출장안마)목포출장코스가격➹안양출장안마추천♞과천콜걸후기♕진해출장연애인급

    성남출장외국인✎서산콜걸강추⇔(포항출장색시미녀언니〖카톡:miss57〗{miss57.com}포항미시출장안마포항2018-12-13-04-09포항➼✪7f출장오쓰피걸포항포항포항릉콜걸샵①포항╣동출장마사지포항c)부산출장외국인☞마산콜걸┌원주출장업소➺순천콜걸

    포항출장업계위◘안동릉콜걸샵☼(김포안마《카톡:up5829》(up5829.com)═2018-12-13-04-09✲☢김포┘ao김포☃♡릉콜걸샵9pu오피걸A2김포♖Ii출장최고시♮☠n출장오피)남원콜걸◦천안안마‿파주흥출장안마☣평택오피걸
  • 남원출장안마야한곳
  • 대전출장최고시
  • 전주출장샵예약포항
  • 순천출장서비스보장『카톡:kn887』《kn887.net》출장가격╛╣2018-12-13-04-09순천순천출장업계위⇡♦❈age╋H╨➻순천오피✡↣67S
  • 평택출장샵콜걸김해출장마사지
  • 계룡콜걸
  • 원주출장외국인♮익산출장샵강추的(익산안마〖카톡:xo779〗【xo779.com】❈익산익산╊➚Cf익산♛익산익산출장샵예약출장샵예약포항╰Bv출장맛사지☣익산익산2018-12-13-04-09)경주출장안마♕동두천출장샵예약☠대전출장서비스보장┦여수출장만남

  • 대전출장서비스보장
  • 속초콜걸만남◀전주역출장안마✎(거제출장여대생{카톡:mss41}〖mss41.com〗거제➻⇏콜걸출장안마출장연애인급출장샵예약포항hw출장샵예약포항☼거제2018-12-13-04-09﹃출장코스가격거제거제↞거제I출장샵추천)제주출장오쓰피걸╬ 파주출장샵예약포항┳상주출장안마추천⇂포천출장안마추천

  • 문경출장미인아가씨【카톡:miss57】{miss57.com}♩문경↼문경XkD문경출장연애인급출장여대생출장최고시출장만족보장문경문경안마cS2018-12-13-04-09☢문경출장샵예약포항문경
  • Boss also studies the mixing and transport of solids in protoplanetary disks of the type necessary in order to form gas giant planets similar to Jupiter, or to undergo FU Orionis outbursts, i.e., in marginally gravitationally unstable (MGU) disks. In such disks, solids of cm-size and smaller should be transported along with the gas through gravitational torques associated with the growing and chaotically evolving spiral arms and clumps. Boss' 3D models show how how crystalline silicates, observed in the outskirts of protoplanetary disks and in long-period comets, could have been formed by thermal annealing closer to their protostar and then transported back outward to cooler regions of the disk. Boss has joined with Conel Alexander and Morris Podolak to study the detailed thermal evolution of finite-size particles in MGU disks. Besides studying rim formation, they intend to focus on the transport of ice mantles from the outer nebula to the inner nebula, with implications for the transport of water to the habitable zone of the solar nebula.진해출장마사지강릉출장샵

  • 목포출장샵추천《카톡:do26》(doo26.com)출장색시미녀언니출장샵안내목포2018-12-13-04-09♟목포목포↫﹄79y⊙목포목포목포zm목포목포♡목포
  • 포천콜걸
  • 충주출장업소
  • 원주출장샵후기《카톡:do26》《doo26.com》오피원주원주bm외국인출장만남출장소이스홍성Cz8역출장안마3원주원주5원주원주출장오쓰피걸x6c출장업소출장색시미녀언니오피걸2018-12-13-04-09오피걸원주
  • 양산출장여대생
  • 마산콜걸강추™동해출장맛사지✪(아산출장소이스〖카톡:mss41〗(mss41.com)아산☁아산━2018-12-13-04-09아산q출장몸매최고☇╔R아산아산아산출장색시미녀언니아산출장샵콜걸출장가격출장여대생)고양모텔출장☃양산외국인출장만남➻김해출장소이스◎청주외국인출장만남

    While the core accretion mechanism is still considered by most to be the leading explanation for the formation of our solar system's gas giant planets, for the last decade Boss has been working to learn whether another mechanism, disk instability, could also form gas giant planets. Boss intends to use either Enzo or FLASH to begin a new set of disk instability calculations with an AMR code, with the final choice to be decided by the options available for handling radiative transfer in these codes.

    Along with Alycia Weinberger and Ian Thompson, Boss has been running the Carnegie Astrometric Planet Search (CAPS) program, which searchs for extrasolar planets by the astrometric method, where the planet's presence is detected indirectly through the wobble of the host star around the center of mass of the system. With over eight years of CAPSCam data, they are beginning to see likely true astrometric wobbles beginning to appear. The CAPSCam planet search effort is on the verge of yielding a harvest of astrometrically discovered planets, as well as accurate parallactic distances to many young stars and M dwarfs.익산출장샵후기◑정읍출장샵예약┳(안산출장샵예약【카톡:kow58】(kow58.com)▐안산2018-12-13-04-09안산안산안산콜걸출장안마안산콜걸샵안산안산⇀┹안산출장샵강추안산안산)원주출장마사지✔진해출장업계위╈문경출장아가씨☜수원오피걸

  • 속초오피걸
  • 공주역출장안마♘목포출장만족보장☀(통영오피걸(카톡:xo779)〖xo779.com〗↕♥A♀ 역출장안마UGJ출장샵예약포항2018-12-13-04-09통영↸출장가격╝출장소이스출장오쓰피걸↿↘통영⇛통영)포항출장샵후기☵마산출장샵강추☇안동모텔출장◇광주출장소이스포항오피걸아산출장마사지청주오피걸
  • 정읍콜걸강추
  • 진주출장안마
  • 광양출장서비스❤여수출장몸매최고♘(청주흥출장안마〖카톡:do26〗『doo26.com』↘청주청주청주√2018-12-13-04-09►┓청주o4청주▨↕청주출장샵후기»◑╋)수원오피▶부산출장마사지▦군산출장소이스홍성♂김해출장최고시문경출장최고시➳대구출장맛사지▦(시흥오피{카톡:mss41}(mss41.com)출장업소R4출장업계위◑7G콜걸샵bw92018-12-13-04-09시흥출장샵예약◆w♡출장만남시흥┌CxF✓KHM시흥▶╩시흥)광명출장샵안내✔부천출장샵예약포항♥마산출장색시미녀언니♂전주출장안마추천광명출장오피【카톡:up5829】〖up5829.com〗동출장마사지광명모텔출장D출장샵콜걸동출장마사지2018-12-13-04-09┝⇩광명출장샵후기광명광명광명╅광명출장소이스홍성출장오쓰피걸
  • 익산출장안마야한곳[카톡:xo779]【xo779.com】출장가격익산MQm2018-12-13-04-09►◇☭출장안마익산yD출장샵추천o익산익산출장소이스♘익산ZXw익산pwr❤출장연애인급G
  • 대전출장샵안내『카톡:do26』(doo26.com)▫✈대전출장맛사지○2018-12-13-04-09대전대전대전┹출장만남☂오피걸☌▒Oi대전Ty대전구미출장여대생↔공주출장오쓰피걸★(대전흥출장안마《카톡:do26》〖doo26.com〗대전2018-12-13-04-09대전대전✓출장소이스대전➶대전흥출장안마대전대전대전↕wF출장코스가격출장오피▽)경산출장소이스홍성➵논산외국인출장만남☃통영출장코스가격◘춘천출장업소청주오피용인출장샵

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