의정부역출장안마↪의정부출장코스가격➸의정부콜걸업소⇚의정부출장서비스보장▲의정부출장외국인┨의정부콜걸업소

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).

  • 부천콜걸[카톡:miss57]【miss57.com】☢부천부천☆오피걸║역출장안마부천╂출장색시미녀언니부천↸부천│부천△2018-12-13-13-41
    • 논산콜걸↞천안출장안마➼(평택출장서비스보장[카톡:mss41](mss41.com)평택v8┰2018-12-13-13-41╦⇗평택평택☢┯출장여대생⇌☼출장샵예약포항출장코스가격평택출장코스가격평택)구리출장코스가격☲정읍콜걸추천﹄진해출장색시미녀언니✲보령콜걸출장안마
    군산미시출장안마❂포천콜걸출장마사지┲(창원콜걸[카톡:mss41]{mss41.com}╳창원콜걸출장마사지↨☼출장안마야한곳창원oI안마창원출장색시미녀언니2018-12-13-13-41콜걸후기6B창원p창원출장외국인♬➷X)남원콜걸추천〓목포출장아가씨☼인천모텔출장◐삼척출장소이스홍성
  • 논산출장업소
    • 속초동출장마사지╛동두천출장샵추천○(밀양출장샵[카톡:up5829]【up5829.com】출장만족보장✔출장서비스X9⇐2018-12-13-13-41밀양밀양밀양✣x출장샵후기출장샵tqy출장샵후기출장만족보장밀양⇥EOm▒2J×)충주출장업소☲대구콜걸강추┌거제출장안마§상주출장서비스
  • 이천출장샵강추
    • 양주콜걸출장마사지▦나주출장아가씨✆(파주콜걸출장안마『카톡:xo779』(xo779.com)파주v8┮2018-12-13-13-41┌┾파주파주∷✲오피걸↩◦출장만족보장출장만족보장파주출장만남파주)아산출장오쓰피걸┬김제콜걸만남☂수원출장오쓰피걸☠남원콜걸후기남원출장샵추천군산출장몸매최고☏남원출장샵강추♪(강릉출장샵안내『카톡:miss57』[miss57.com]오피걸강릉a강릉RK◘출장샵안내강릉출장맛사지출장안마추천⇢◐➚↔강릉콜걸강추안마강릉2018-12-13-13-41)서울콜걸샵⇈거제출장안마야한곳↕서울출장샵추천⚘광명오피동해외국인출장만남➶포천출장안마야한곳↕(제주도흥출장안마《카톡:up5829》(up5829.com)♠➻b2018-12-13-13-41제주도출장안마추천제주도─출장안마♫출장업소⇅he4오피제주도제주도p▽◎출장서비스보장)안산출장안마⇃김포콜걸출장마사지▄군산콜걸후기❄김천콜걸출장마사지양주동출장마사지↚상주출장소이스홍성0(공주출장오피{카톡:up5829}〖up5829.com〗공주2018-12-13-13-41공주Y콜걸출장마사지출장코스가격G외국인출장만남공주공주공주d공주공주출장최고시공주vNP동출장마사지▣공주릉콜걸샵)용인오피☴김해출장미인아가씨⇩경주출장몸매최고▲경주오피광주출장미인아가씨{카톡:mss41}[mss41.com]미시출장안마Kn광주sF오피광주광주┮광주출장서비스9광주⇘-♠7┌광주╡⇚2018-12-13-13-41
  • 김포콜걸
    • 이천출장마사지(카톡:miss57)(miss57.com)이천卐안마이천2018-12-13-13-41█출장샵▒aY이천이천S이천♦☽►MJl출장샵강추이천이천
  • 진주출장마사지
    • 상주콜걸출장마사지
  • 영천출장샵추천

    • 공주콜걸업소✃진해콜걸추천➺(익산출장연애인급【카톡:xo779】[xo779.com]출장샵안내P2018-12-13-13-41익산➸익산익산출장업계위익산익산미시출장안마출장샵강추→yd출장안마출장맛사지출장오피z출장소이스출장마사지RVD)삼척출장몸매최고├군산오피걸✍상주출장오쓰피걸⇚경산콜걸후기
    화성콜걸제천출장맛사지▧남원콜걸출장마사지⇢(청주역출장안마{카톡:kn887}【kn887.net】⇤2018-12-13-13-41청주Ip출장가격청주출장서비스보장◣출장서비스보장출장안마야한곳l청주┏출장가격콜걸만남↭청주┱uPk╤)구리출장업계위▦익산미시출장안마♛전주흥출장안마┬밀양출장마사지창원출장샵
  • 수원출장만남《카톡:do26》〖doo26.com〗“2018-12-13-13-41수원수원V수원콜걸출장마사지☭↺⇊◦⇄♭IQ⇞수원출장아가씨출장외국인E←
  • 원주출장업소

    • 과천출장업계위↲부천출장샵추천↾(의정부출장샵안내[카톡:xo779]【xo779.com】의정부의정부♠의정부출장최고시Y☠┤2018-12-13-13-41출장안마야한곳출장여대생의정부yLi◐출장몸매최고의정부║의정부의정부)광주출장업계위⇡진주출장몸매최고↔논산콜걸후기┿경산역출장안마
    원주출장아가씨인천흥출장안마
  • 영천출장소이스홍성
  • 평택출장마사지
  • 과천콜걸강추《카톡:xo779》[xo779.com]출장미인아가씨콜걸추천♨♫♜♂동출장마사지┱과천[콜걸만남과천모텔출장┰과천➳2018-12-13-13-41
    • 인천출장샵성남출장서비스☻양주출장샵예약↕(보령출장맛사지『카톡:mss41』(mss41.com)╪2018-12-13-13-41보령보령V보령출장샵예약┯♀╗⇛▲☠IQ↔보령출장미인아가씨출장미인아가씨E┄)전주출장안마추천◐대전콜걸샵♮태백출장샵강추┃안양미시출장안마제주콜걸강추남원안마(카톡:up5829)(up5829.com)◘콜걸샵2018-12-13-13-41♬출장안마남원큐u남원출장서비스출장맛사지⇛»남원남원콜걸추천남원남원
  • 오산출장서비스

    • 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.포항출장서비스

  • 수원출장업계위『카톡:kow58』{kow58.com}콜걸강추◘No2018-12-13-13-41↑╯출장소이스수원수원콜걸추천⇪┲L7F수원출장만남수원콜걸업소안마TD수원

    • 천안콜걸출장안마✐영천출장최고시◐(공주출장서비스보장[카톡:up5829][up5829.com]출장샵후기안마공주출장마사지공주◦2018-12-13-13-41♧┻➷H8공주♟콜걸샵Pq☪♧oKT공주↷60q)원주출장샵★구미출장여대생⇖대구출장가격⇣의정부출장샵안내

  • 춘천출장소이스홍성
  • 속초출장안마

    • 전주콜걸출장마사지╬ 남원출장몸매최고卐(수원출장샵추천【카톡:kow58】{kow58.com}출장맛사지수원to출장소이스역출장안마수원2018-12-13-13-41수원수원수원수원↯수원xn수원수원✿╇Oo↩)군산모텔출장♧수원콜걸추천◇청주출장샵예약☣순천오피걸

  • 통영출장샵
    • 계룡출장안마제천콜걸업소【카톡:xo779】『xo779.com』출장최고시Kn제천sF출장샵콜걸제천제천↟제천콜걸만남9제천━ⓞ▩7♕제천☃☾2018-12-13-13-41

    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.김제출장아가씨☢거제콜걸출장안마┙(창원출장업소[카톡:do26]【doo26.com】창원⇠7TR◆y♝출장샵추천출장코스가격d역출장안마2018-12-13-13-41출장안마추천창원창원A√오피걸♢오피걸↤➛)김해출장업소↜광주출장서비스보장♕청주출장소이스↦고양출장맛사지진주안마↔계룡콜걸출장안마♗(광명출장아가씨『카톡:up5829』《up5829.com》☄TZ출장소이스2018-12-13-13-41광명⇎광명☎광명﹄광명광명광명출장연애인급I0광명♨✍v║x0U)경산역출장안마☣군포출장샵추천⇅춘천출장가격☊청주출장최강미녀

  • 군포
    • 논산콜걸후기⇦김해출장안마✪(평택출장아가씨(카톡:mss41)【mss41.com】☭✿b2018-12-13-13-41평택출장샵추천평택➷출장오피⇤동출장마사지☣he4출장소이스홍성평택평택p☼×출장샵콜걸)의왕출장샵추천☺익산출장업소↸제주도외국인출장만남♭대전콜걸업소
  • 남원출장아가씨
    • 순천콜걸출장안마U김제흥출장안마⇪(진해출장샵후기〖카톡:kn887〗[kn887.net]출장가격2018-12-13-13-41진해◦I진해☎LP역출장안마♂⇗DZd진해진해⇈kuG큐진해출장색시미녀언니c10출장연애인급⇛)포천출장최강미녀§안동흥출장안마▧제주오피◘목포흥출장안마

    대구출장만족보장△경주오피걸✗(경주콜걸샵【카톡:do26】『doo26.com』경주↺2018-12-13-13-41출장코스가격경주콜걸강추↴흥출장안마▄┢┗↩출장샵강추X출장샵후기역출장안마경주경주)정읍출장안마추천╧광주콜걸추천◤아산출장시┶포항출장가격포천출장미인아가씨✍아산출장연애인급═(청주출장샵강추〖카톡:kn887〗『kn887.net』출장만남출장샵강추출장샵콜걸출장맛사지청주청주0G12018-12-13-13-41청주r9G출장샵강추청주청주출장안마릉콜걸샵콜걸출장마사지청주동출장마사지☼)수원출장아가씨╚동해출장서비스보장⇋과천콜걸샵➦광양콜걸만남여수콜걸샵

  • 천안역출장안마〖카톡:miss57〗{miss57.com}✓2018-12-13-13-41천안천안V천안출장샵후기⊿⇩♨×♧☾IQ╙천안출장업소출장미인아가씨E↹
    • 동두천출장연애인급☇광명콜걸후기❂(이천출장만족보장[카톡:miss57]『miss57.com』➼이천출장몸매최고❈출장시이천b╁ⓔ2018-12-13-13-41이천╩♖┕5출장연애인급출장가격출장샵예약포항♩r)대전출장여대생﹌태백출장안마추천☏청주출장안마추천┏밀양출장샵예약포항

    전주출장만족보장❀전주출장오쓰피걸↭전주동출장마사지┖전주콜걸만남 전주동출장마사지╳전주출장연애인급

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