| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZGivnK2Y/Nicf6 |
| Repository | sid.inpe.br/mtc-m17@80/2006/11.28.12.41 (restricted access) |
| Last Update | 2006:11.28.12.45.27 (UTC) administrator |
| Metadata Repository | sid.inpe.br/mtc-m17@80/2006/11.28.12.41.37 |
| Metadata Last Update | 2018:06.05.03.44.05 (UTC) administrator |
| Secondary Key | INPE-14363-PRE/9450 |
| ISSN | 0378-4371 |
| Citation Key | AbramoSodrSouz:2006:AnLoCM |
| Title | Anomalies in the low CMB multipoles and extended foregrounds  |
| Year | 2006 |
| Access Date | 2024, Apr. 28 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 920 KiB |
| 2. Context | |
| Author | 1 Abramo, L. Raul 2 Sodré Júnior, Laerte 3 Souza, Carlos Alexandre Wuensche de |
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JGQK |
| Group | 1 2 3 DAS-INPE-MCT-BR |
| Affiliation | 1 Instituto de Física, Universidade de São Paulo 2 Departamento de Astronomia, Instituto Astronômico e Geofísico, Universidade de São Paulo 3 Instituto Nacional de Pesquisas Espaciais (INPE) |
| Journal | Physica A: Statistical Mechanics and its Applications |
| Volume | 74 |
| History (UTC) | 2006-11-28 12:45:27 :: simone -> administrator :: 2008-06-29 02:28:46 :: administrator -> simone :: 2008-11-04 18:42:37 :: simone -> banon :: 2010-05-17 19:10:27 :: banon -> administrator :: 2012-11-24 01:39:06 :: administrator -> simone :: 2006 2013-02-20 15:19:51 :: simone -> administrator :: 2006 2018-06-05 03:44:05 :: administrator -> marciana :: 2006 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Abstract | We discuss how an extended foreground of the cosmic microwave background (CMB) can account for the anomalies in the low multipoles of the CMB anisotropies. The distortion needed to account for the anomalies is consistent with a cold spot with the spatial geometry of the local supercluster (LSC) and a temperature quadrupole of order T2 2 50 K2. If this hypothetic foreground is subtracted from the CMB data, the amplitude of the quadrupole ( 2) is substantially increased, and the statistically improbable alignment of the quadrupole with the octopole ( 3) is substantially weakened, increasing dramatically the likelihood of the cleaned maps. By placing the foreground on random locations and then computing the likelihood of the cleaned maps we can estimate the most likely place for this foreground. Although the 1-year WMAP data clearly points the location of this hypothetical foreground to the LSC or its specular image (i.e., the vicinity of the poles of the cosmic dipole axis), the three-year data seems to point to these locations as well as the north ecliptic pole. We show that this is consistent with the symmetries of the cosmic quadrupole. We also discuss a possible mechanism that could have generated this foreground: the thermal Sunyaev-Zeldovich effect caused by hot electrons in the LSC. We argue that the temperature and density of the hot gas which are necessary to generate such an effect, though in the upper end of the expected range of values, are marginally consistent with present observations of the X-ray background of spectral distortions of the CMB. |
| Area | CEA |
| Arrangement | urlib.net > DMA > Anomalies in the... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | Anomalies in the low CMB.pdf |
| User Group | administrator banon simone |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher denyfinaldraft24 |
| Read Permission | deny from all and allow from 150.163 |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ETR8EH |
| Dissemination | WEBSCI; PORTALCAPES; COMPENDEX. |
| Host Collection | lcp.inpe.br/ignes/2004/02.12.18.39 cptec.inpe.br/walmeida/2003/04.25.17.12 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel documentstage doi e-mailaddress electronicmailaddress format isbn keywords label lineage mark mirrorrepository month nextedition notes number orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project readergroup rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |