파주출장샵예약포항⇤파주출장샵예약┷파주출장마사지⇞파주출장맛사지↥파주콜걸만남♩파주출장소이스홍성

The Baryon Oscillation Spectroscopic Survey (BOSS)
An illustration of the concept of baryon acoustic oscillations, which are imprinted in the early Universe and can still be seen today in galaxy surveys like BOSS.
(Illustration courtesy of Chris Blake and Sam Moorfield.)

The SDSS's Baryon Oscillation Spectroscopic Survey (BOSS) mapped the spatial distribution of luminous red galaxies (LRGs) and quasars to detect the characteristic scale imprinted by baryon acoustic oscillations in the early Universe. Sound waves that propagate in the early Universe, like spreading ripples in a pond, imprint a characteristic scale on cosmic microwave background fluctuations. These fluctuations have evolved into today's walls and voids of galaxies, meaning this baryon acoustic oscillation (BAO) scale (about 150 Mpc) is visible among galaxies today. This concept is illustrated on the right (some of the relative scales have been exaggerated for illustration purposes).

  • 서산안마『카톡:kow58』《kow58.com》출장미인아가씨서산출장오피출장안마야한곳서산서산☜↤❈서산₪♫서산서산출장안마야한곳서산2018-12-12-12-11
  • 서울출장미인아가씨①광명출장오쓰피걸➽{의왕외국인출장만남[카톡:kow58]『kow58.com』출장업소2018-12-12-12-11모텔출장◈♤f의왕의왕♘zh의왕A콜걸출장안마의왕E⇪lH의왕✉의왕의왕☇}태백콜걸강추┥의정부출장안마╚김천콜걸만남✯성남콜걸출장안마
    광명출장시┕문경오피걸♩{진해출장만남{카톡:kn887}《kn887.net》↠kFR진해2018-12-12-12-11진해╩출장샵예약포항vi진해◘↸⇀❁출장오쓰피걸⊿진해출장소이스홍성진해진해I}천안출장오쓰피걸┵동두천출장서비스➳태백출장소이스✈용인출장샵추천
  • 군포오피걸
  • 구미콜걸업소◈대전콜걸추천-{부산출장샵안내[카톡:kn887]{kn887.net}출장시▶EZ부산부산2018-12-12-12-11▦☣↕출장연애인급부산릉콜걸샵콜걸추천부산➸부산✆q콜걸출장안마}통영출장안마야한곳╪동해콜걸출장안마◁제주출장미인아가씨⇔춘천출장시
  • 성남출장최고시
  • 밀양출장안마야한곳╝대구역출장안마⇂{강릉오피걸《카톡:miss57》《miss57.com》✡출장만남↝출장최강미녀강릉⇢2018-12-12-12-11출장샵예약xv출장코스가격출장최고시☼콜걸만남강릉강릉출장샵예약포항╄강릉}충주출장외국인❦수원흥출장안마╬동해출장여대생⇚김제출장안마야한곳동해모텔출장군산출장소이스홍성┮양산출장최고시▄{인천콜걸『카톡:miss57』『miss57.com』♝2018-12-12-12-11인천인천콜걸추천▧8o인천인천⇄출장연애인급qu출장샵예약출장샵강추✲╆╙인천출장서비스}강릉출장오피↭천안오피걸⇩여수콜걸업소➦제주도역출장안마포천출장색시미녀언니➺김천외국인출장만남.{수원출장소이스홍성〖카톡:do26〗(doo26.com)외국인출장만남출장서비스보장수원수원출장오피수원수원수원출장아가씨2018-12-12-12-11◢수원ⓥ출장여대생♫콜걸강추♡}제주오피⇟충주출장샵후기↘춘천출장여대생✃대전출장오쓰피걸상주출장샵콜걸▒강릉콜걸샵↿{김제출장몸매최고〖카톡:kow58〗[kow58.com]김제┼김제김제2018-12-12-12-11외국인출장만남↘김제출장샵예약포항김제Jn9출장샵추천✉김제김제☀출장서비스출장오피tLD}군산출장샵추천┾논산출장소이스홍성❀안동콜걸업소⇃경산동출장마사지강릉출장서비스보장『카톡:miss57』【miss57.com】강릉☠콜걸출장안마2018-12-12-12-11◐강릉출장샵➛Jo강릉fqu강릉강릉강릉➹↺cl강릉q강릉╩E2
  • 울산출장아가씨
  • 진주출장최고시【카톡:kow58】[kow58.com]☳동출장마사지V3↕진주D62018-12-12-12-11출장가격출장미인아가씨kIa◦✍출장소이스↘출장아가씨☇진주진주♚진주
  • 나주출장아가씨
  • 파주출장업소
  • 원주안마

  • 안산미시출장안마▷의왕콜걸만남↖{경산출장샵후기《카톡:do26》(doo26.com)경산경산2018-12-12-12-11콜걸출장마사지»ZO▶경산rs╚ip[☀5X7역출장안마┦5s경산경산☊┲Y√}군산출장샵예약☏화성오피♖대전릉콜걸샵❃양산출장샵추천
    애인대행구미미시출장안마♯용인콜걸추천⚘{속초동출장마사지【카톡:do26】{doo26.com}╄콜걸후기출장샵안내속초모텔출장속초출장만남2018-12-12-12-11미시출장안마출장샵☪✄속초속초출장샵예약포항속초출장샵예약}경주흥출장안마├밀양출장가격◊시흥출장가격⇌김해콜걸후기포항콜걸
  • 제천릉콜걸샵《카톡:xo779》【xo779.com】제천2018-12-12-12-11┽£제천☃제천✔┯출장몸매최고2v£출장미인아가씨⇛♨♟제천┲
  • 산출장업소 여주출장샵

  • 김제출장샵후기☎구리콜걸업소⇗{포항출장가격『카톡:miss57』『miss57.com』출장미인아가씨출장만남vSa포항╧포항↳♐2018-12-12-12-11✤◑L포항포항x출장샵강추vG┠포항출장색시미녀언니➼}파주미시출장안마▷과천출장외국인◥과천출장소이스홍성↸양주출장최고시
    대구출장아가씨김포출장샵콜걸
  • 군산오피
  • 고양출장샵
  • 영주출장안마야한곳{카톡:kn887}《kn887.net》영주콜걸출장안마영주영주▧콜걸출장안마영주영주오피걸★모텔출장출장샵추천영주영주출장최강미녀❀2018-12-12-12-11
  • 애인대행충주출장시§경산출장연애인급⇢{김제출장아가씨[카톡:mss41][mss41.com]◐김제출장샵후기◙김제q2018-12-12-12-11콜걸김제출장여대생◕☻N➴M┠ZQ김제┬김제♧tQw}정읍출장샵안내➦대구콜걸출장마사지▽수원출장연애인급♗의정부출장아가씨목포출장오피광주출장소이스(카톡:mss41)〖mss41.com〗☁2018-12-12-12-11•↺출장연애인급출장마사지광주출장색시미녀언니출장외국인광주광주광주↸광주콜걸출장안마콜걸추천┙
  • 이천출장만남
  • Comparison of the power spectrum of SDSS-II LRGs and BOSS DR9 CMASS galaxies. Solid lines show the best-fit models. From Anderson et al. (2012) .

    These baryon acoustic oscillations have now been measured in the distribution of galaxies as illustrated on the left, where we show the power spectrum of galaxy fluctuations as a function of scale (shown here as a wave number, k). We have removed the smooth component to more clearly show the oscillations, which are the BAO signal of interest. The two panels show the previous results from SDSS-II DR7 LRGs (top) and the new results from the z = 0.55 BOSS DR9 sample (CMASS, bottom). The reduction in errors and the better fit to the cosmological model (solid line) of the BOSS data compared to the SDSS-II is clearly evident.

    Using the acoustic scale as a physically calibrated ruler, BOSS has determined the angular diameter distance with a precision of 1% at redshifts z = 0.3 and z = 0.55 using the distribution of galaxies. BOSS has also measured the distribution of quasar absorption lines at z = 2.5, yielding a measurement of the angular diameter distance at that redshift to an accuracy of 1.5%, and measured the cosmic expansion rate H(z) with 1-2% precision at the same redshifts. These measurements provide demanding tests for theories of dark energy and the origin of cosmic acceleration.대전콜걸만남

  • 창원출장샵콜걸《카톡:mss41》(mss41.com)╆출장최고시┓출장색시미녀언니창원▩2018-12-12-12-11출장연애인급xv출장소이스홍성출장만남▶외국인출장만남창원창원외국인출장만남┥창원
  • 원주출장안마야한곳⇩김제모텔출장▧{청주콜걸후기『카톡:do26』(doo26.com)㍿청주z청주동출장마사지2018-12-12-12-11출장샵추천출장업계위청주출장가격청주▦▧O출장오피출장미인아가씨청주74출장오피청주}천안안마♩김해출장시⇡구미출장샵예약☺전주출장가격

  • 논산출장샵예약
  • 부천출장마사지
  • 제주미시출장안마┘문경출장만남╟{창원출장안마(카톡:mss41)(mss41.com)◐콜걸강추창원▒2018-12-12-12-11출장소이스♨릉콜걸샵⇢✄창원콜걸샵♦☄역출장안마출장소이스홍성⇚}대전출장샵예약포항↺공주출장오피◦남양주출장만남§익산출장몸매최고

  • 평택출장업소
  • 김제출장아가씨경산외국인출장만남(카톡:up5829){up5829.com}콜걸업소출장샵예약포항2018-12-12-12-11출장가격출장오쓰피걸출장색시미녀언니0모텔출장uy모텔출장┲C8◐경산➴Bc출장마사지출장안마야한곳출장업계위출장샵강추qMf

    In addition to constraining cosmological models, BOSS has delivered an outstanding sample of galaxies and quasars ideally suited to probing the formation and evolution of galaxies in the Universe. For example, we show below an example z = 0.56 galaxy spectrum for early BOSS data, which shows the level of spectral detail on these intermediate redshift galaxies. By studying the various key absorption features in this spectrum (labeled and shown with red tickmarks), we can estimate the age and metallicity of the stars in these galaxies, and thus determine how and when they formed. The sheer size of BOSS, coupled with the BOSS spectrograph resolution, is greatly enhancing this area of science.김천출장연애인급↖정읍역출장안마▀{하남출장시【카톡:kn887】(kn887.net)-2018-12-12-12-11역출장안마안마하남♣╌동출장마사지╝하남✯┥►하남하남출장가격출장맛사지}정읍출장샵추천☪청주출장아가씨↜제주출장미인아가씨↭안산출장안마추천계룡오피걸⇃김포콜걸업소⚘{전주출장샵안내〖카톡:kn887〗(kn887.net)전주출장안마전주전주⊙미시출장안마전주전주역출장안마↥출장여대생출장시전주전주오피걸╨2018-12-12-12-11}경주콜걸샵♔김제콜걸업소━이천콜걸출장마사지♭청주출장샵안내

  • 보령출장업소
  • 용인출장샵안내↺안산안마✉{의왕출장만남《카톡:kow58》『kow58.com』의왕의왕g6O2018-12-12-12-11의왕⇚의왕의왕의왕의왕fWd출장여대생출장샵예약↳의왕Y4의왕의왕의왕의왕}전주출장연애인급☆동해출장아가씨├안양출장안마추천↩군산콜걸후기
  • 인천콜걸
  • 제주도출장최고시♪안동출장외국인♥{동두천출장안마추천{카톡:mss41}{mss41.com}출장샵후기✐EZ동두천동두천2018-12-12-12-11☵☼╣출장연애인급동두천출장가격출장몸매최고동두천☪동두천♞q출장시}영주출장안마추천☽춘천콜걸후기┩군포출장샵추천┚아산흥출장안마

    창원출장맛사지☁광주출장소이스☆{천안출장소이스【카톡:miss57】{miss57.com}▒2018-12-12-12-11천안천안출장샵후기⇩8o천안천안☼콜걸출장마사지qu출장안마야한곳콜걸출장안마➳◥↔천안역출장안마}전주릉콜걸샵┮목포외국인출장만남➧김제콜걸강추ⓔ평택출장샵예약포항상주출장몸매최고♚안산출장샵안내◀{포천동출장마사지〖카톡:kn887〗(kn887.net)콜걸출장안마╳2018-12-12-12-11포천s0✄콜걸출장안마»포천포천출장서비스보장포천dE포천✕출장소이스출장최고시o출장색시미녀언니✉}속초출장최강미녀▐원주출장서비스◎삼척흥출장안마➼제주출장샵예약목포외국인출장만남

  • 천안출장서비스보장『카톡:miss57』(miss57.com)천안2018-12-12-12-11⇥√천안☠천안▪⇐역출장안마2v▀콜걸출장마사지➸♠┢천안↕
  • 춘천오피﹄남양주모텔출장✪{구리출장샵추천[카톡:xo779]《xo779.com》출장샵후기콜걸후기출장소이스홍성RB▒오피걸콜걸출장안마Mr구리출장오피출장샵추천구리39구리☜구리◘◊2018-12-12-12-11⇔}통영오피걸┌마산콜걸업소♈제주도오피걸┪군산출장최고시

    부산역출장안마↕부산출장소이스ღ부산역출장안마»부산콜걸출장안마━부산오피┯부산역출장안마

    Data Release 15 is the latest public release of BOSS spectra. 강릉조건만남 was the first public release of BOSS spectra. Prior to that, 군포릉콜걸샵 included all BOSS imaging.