Vés al contingut

Fitxer:KIC 8462852 TS g-prime-band Normalized Flux by Bruce Gary, 20170502-20171004.png

El contingut de la pàgina no s'admet en altres llengües.
De la Viquipèdia, l'enciclopèdia lliure

Fitxer original(1.260 × 715 píxels, mida del fitxer: 124 Ko, tipus MIME: image/png)

Descripció a Commons

Resum

Descripció
English: Hereford Arizona Observatory photometry observations of KIC 8462852 between 2 May and 4 October 2017.[1]

KIC8462852 Hereford Arizona Observatory Photometry Observations Bruce Gary, Last updated: Last updated: 2017.10.04, 19 UT

NOTE: (Drbogdan (discussió) 15:58, 4 October 2017 (UTC)) =>

Also see newly created "Hereford Arizona Observatory (HAO)" article - as well as - the original HAO WebSite.

"The current 0.3 % dip has completely recovered."[1]

"The [earlier] September fade event has recovered. It lasted from Sep 5.5 UT to Sep 16 UT, and reaching a depth of ~ 2.3 %."[2] - as/of 16 September 2017, a "2.3%"[2] (or a "3%")[3] dimming.

Light curve for "May to now [4 October 2017]" for HAO V-band and g'-band observations, with an adjustment for an "Inverse Gaussian" model for the medium-term (month timescale) variation of OOT brightness (described below). Starting Sep 21, when g'-band replaced V-band observations, an empirical adjustment was made to all previous V-mag's (adding 0.179 mag).[1]

Note: g'-band and r'-band dip depths (and shapes) may differ, with g'-band being more sensitive to dust cloud scattering due to its shorter wavelength (0.47 vs. 0.62 micron). For a reasonable particle size distribution (e.g., Hanson, 0.2 micron) the extinction cross section ratio would produce a depth at r'-band that is 0.57 x depth at g'-band. If g'-band depth is 0.3 %, for example, depth at r'-band could be 0.17 %. The "Tabby Team" measurements (Fig. 3) at r'-band are compatible with that small dip depth. Incidentally, none of these shapes resemble exo-comet tail transits (as described by Rappaport et al, 2017 link); so the mystery of what's producing these week-timescale dips continues! Actually, long oval shapes are known to produce V-shaped dips (think of rings with a high inclination).[1]

References

  1. a b c d Gary, Bruce (4 October 2017). Hereford Arizona Observatory photometry observations of KIC 8462852 between 2 May and 4 October 2017. Bruce Gary. Archived from the original on 4 October 2017. Retrieved on 4 October 2017.
  2. a b Gary, Bruce (16 September 2017). Hereford Arizona Observatory photometry observations of KIC 8462852 between 2 May and 16 September 2017.. Bruce Gary. Archived from the original on 17 September 2017. Retrieved on 28 September 2017.
  3. Boyajian, Tabetha S. (dècada del 10
    date QS:P,+10-00-00T00:00:00Z/8
    eptember 2017). Tweets: "Now @tsboyajian's star is down 3%! How low will it go? Hi-res spectra and IR photometry needed!" - Jason Wright. Twitter. Archived from the original on 17 September 2017. Retrieved on 28 September 2017.

NOTE (Drbogdan (discussió) 12:47, 28 October 2017 (UTC)): => Please see newly updated webpage for the very latest light curves at => http://www.brucegary.net/ts4/ (archived copy)

Older webpages at =>

Data
Font http://www.brucegary.net/ts4/17.10.04%2004%20TS%28g%27%29%20d7A04%20NFL%20May-Oct.jpg
Autor Bruce L. Gary
Permís
(Com reutilitzar aquest fitxer)
This site opened: 2017.09.28. Nothing on this web page is copyrighted." from http://www.brucegary.net/ts4/ (archived copy) - AND - from http://www.brucegary.net/ts1601/ (archived copy)

Llicència

Creative Commons CC-Zero L'ús d'aquest fitxer és regulat sota les condicions de Creative Commons de CC0 1.0 lliurament al domini públic universal.
La persona que ha associat un treball amb aquest document ha dedicat l'obra domini públic, renunciant en tot el món a tots els seus drets de d'autor i a tots els drets legals relacionats que tenia en l'obra, en la mesura permesa per la llei. Podeu copiar, modificar, distribuir i modificar l'obra, fins i tot amb fins comercials, tot sense demanar permís.

Llegendes

Afegeix una explicació d'una línia del que representa aquest fitxer

Elements representats en aquest fitxer

representa l'entitat

Historial del fitxer

Cliqueu una data/hora per veure el fitxer tal com era aleshores.

Data/horaMiniaturaDimensionsUsuari/aComentari
actual17:39, 4 oct 2017Miniatura per a la versió del 17:39, 4 oct 20171.260 × 715 (124 Ko)DrbogdanUser created page with UploadWizard

La pàgina següent utilitza aquest fitxer:

Ús global del fitxer

Utilització d'aquest fitxer en altres wikis: