2007CBET.1152....1T

Query : 2007CBET.1152....1T

2007CBET.1152....1T - Central Bureau Electronic Telegrams, 1152, 1 (2007/December-0)

Supernova 2007rv in NGC 689.

TAN T.G., SUZUKI M., NAKANO S., NISHIYAMA K. and KABASHIMA F.

Abstract (from CDS):

T. G. Tan, Mt. Claremont, Western Australia, reports the discovery of an apparent supernova on unfiltered CCD images taken on Nov. 7.52 UT with a 9.25-cm Celestron reflector, the new object reported as being located at R.A. = 1h49m52s.86, Decl. = -27o28'04".1 (equinox 2000.0; image scale 2"/pixel), or 14" east and 4" south of the nucleus of the galaxy NGC 689; galaxy light may have contaminated the magnitude measured for 2007rv, but a V-band image taken by Tan on Nov. 11.51 yielded mag 15.9 for the new object (unfiltered images taken by Tan on both nights showed a 0.9-mag brightening between the four nights). Digitized Sky Survey reference images were saturated at the location of 2007rv, and so additional confirmation was sought by the Central Bureau via its unconfirmed-objects webpage and via direct communication with numerous observers, including M. Suzuki (Utsunomiya, Tochigi, Japan), who obtained images remotely with a 0.25-m f/6 reflector at Moorook, Australia, on Nov. 23.650 and 24.495, measuring 2007rv to be V = 14.9 and 15.1, respectively, and having position end figures 52s.88 ± 0".02, 02".6 ± 0".1 (offset 15".2 east and 3".3 south of the nucleus of NGC 689). Suzuki adds that a USNO-B1.0-catalogue star (red mag 16.8) has position end figures 52s.79, 02".1. S. Nakano (Sumoto, Japan) reports that images taken by K. Nishiyama (Kurume, Fukuoka-ken, Japan), and F. Kabashima (Miyaki-cho, Saga-ken, Japan), presumably with a 40-cm f/9.8 reflector + unfiltered CCD, yield the following magnitudes for 2007rv: Nov. 7.52, 15.4; 28.563, 15.6; 29.607, 16.1. Nishiyama and Kabashima also provide the following position end figures from their images on Nov. 28 and 29: 52s.85 ± 0s.02, 02".2 ± 0".1

Abstract Copyright: ∼

Journal keyword(s):

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 SN 2007rv SN* 01 49 52.86 -27 28 04.1     16.8     SNIa 4 1

Query : 2007CBET.1152....1T

Basic data :
SN 2007rv -- SuperNova
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types: 		SN* (SN)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		01 49 52.86 -27 28 04.1 [ ] D 2008yCat.2283....0B
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		01 47 35.06 -27 42 55.8 [ ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		217.78669 -77.01941 [ ]
Spectral type is made of 3 parts: %coding is composed of 4 parts :
  • the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities;
  • a quality letter: A=best quality→E=worst quality, {� } =unknown quality %
  • a quality letter: A=best quality -> E=worst quality, {� } =unknown quality
  • bibcode : bibcode of the spectral type reference
Spectral type: 		SNIa C 2008yCat....1.2024B
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (1) :
V 16.8 [~] D 2008yCat.2283....0B
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon
Some important notes on this object about identifications and objects associations.
notes:

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (1) :
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SN 2007rv

References (4 between 1850 and 2024) (Total 4)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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