| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m16.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 6qtX3pFwXQZsFDuKxG/GA7ft |
| Repository | sid.inpe.br/marciana/2005/06.27.17.01 (restricted access) |
| Last Update | 2005:06.27.03.00.00 (UTC) administrator |
| Metadata Repository | sid.inpe.br/marciana/2005/06.27.17.01.40 |
| Metadata Last Update | 2018:06.05.01.21.34 (UTC) administrator |
| Secondary Key | INPE-12809-PRE/8099 |
| ISSN | 0103-9733 |
| Citation Key | MadsenSawaFernCeca:2004:ExSoCh |
| Title | Exploration of solar chromosphere using high resolution spectroscopic observations  |
| Year | 2004 |
| Month | Dec. |
| Access Date | 2024, May 05 |
| Secondary Type | PRE PN |
| Number of Files | 1 |
| Size | 482 KiB |
| 2. Context | |
| Author | 1 Madsen, F. R. H. 2 Sawant, Hanumant Shankar 3 Fernandes, Francisco Carlos Rocha 4 Cecatto, José Roberto |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JHBU 3 4 8JMKD3MGP5W/3C9JHJB |
| Group | 1 DAS-INPE-MCT-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais, (INPE) |
| Journal | Brazilian Journal of Physics |
| Volume | 34 |
| Number | 4b |
| Pages | 1538-1541 |
| History (UTC) | 2005-06-28 11:40:36 :: sergio -> administrator :: 2006-09-28 22:28:53 :: administrator -> sergio :: 2008-01-07 12:54:01 :: sergio -> administrator :: 2018-06-05 01:21:34 :: administrator -> marciana :: 2004 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | CORONA BSS |
| Abstract | Brazilian Solar Spectroscope (BSS), operating in the frequency range of (1000 - 2500) MHz with high time and frequency resolutions, has observed various fine structures showing intensity variations as functions of time and frequency. Here we are reporting radio bursts observed by BSS, from August to October/2001, exhibiting fine structures with total duration of the order of 300 ms, covering a frequency range of similar to200 MHz. These characteristics are similar to those of the narrow band type III bursts observed above 1000 MHz. Hence these fine structures are variants of decimetric narrow band type III-like bursts. The fine structures observed exhibit variation of intensity as a function of frequency and curvatures in the frequency-time plane. These fine structures are explained as a propagation effect. We suggest that these structures are the signatures of the chromospheric density inhomogeneities lying in the line-of-sight path between the observer and the radio source. If the emitted frequencies are lower than the plasma frequency of the inhomogeneity, there will be absorption over a certain band, corresponding to the dimension of the inhomogeneity. The curved like structures are due to lower group velocities of the lower frequencies in the density inhomogeneities. The estimated scale sizes of the irregularities obtained are of the order of 10(1)-10(4) km. Thus an alternative method to total solar eclipse observation is suggested for investigations of chromospheric density irregularities.. |
| Area | CEA |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > Exploration of solar... |
| 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 | exploration solar.pdf |
| User Group | administrator sergio |
| Visibility | shown |
| Copy Holder | SID/SCD |
| Archiving Policy | denypublisher denyfinaldraft12 |
| Read Permission | deny from all and allow from 150.163 |
| 5. Allied materials | |
| Next Higher Units | 8JMKD3MGPCW/3ETR8EH |
| Dissemination | WEBSCI; PORTALCAPES; SCIELO. |
| Host Collection | sid.inpe.br/banon/2003/08.15.17.40 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyright creatorhistory descriptionlevel documentstage doi e-mailaddress electronicmailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid 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 | |