J/A+A/579/A40 PESSTO catalog (Smartt+, 2015)
PESSTO: survey description and products from the first data release by the
Public ESO Spectroscopic Survey of Transient Objects.
Smartt S.J., Valenti S., Fraser M., Inserra C., Young D.R., Sullivan M.,
Pastorello A., Benetti S., Gal-Yam A., Knapic C., Molinaro M.,
Smareglia R., Smith K.W., Taubenberger S., Yaron O., Anderson J.P.,
Ashall C., Balland C., Baltay C., Barbarino C., Bauer F.E., Baumont S.,
Bersier D., Blagorodnova N., Bongard S., Botticella M.T., Bufano F.,
Bulla M., Cappellaro E., Campbell H., Cellier-Holzem F., Chen T.-W.,
Childress M.J., Clocchiatti A., Contreras C., Dall'ora M., Danziger J.,
De Jaeger T., De Cia A., Della Valle M., Dennefeld M., Elias-Rosa N.,
Elman N., Feindt U., Fleury M., Gall E., Gonzalez-Gaitan S., Galbany L.,
Morales Garoffolo A., Greggio L., Guillou L.L., Hachinger S., Hadjiyska E.,
Hage P.E., Hillebrandt W., Hodgkin S., Hsiao E.Y., James P.A.,
Jerkstrand A., Kangas T., Kankare E., Kotak R., Kromer M., Kuncarayakti H.,
Leloudas G., Lundqvist P., Lyman J.D., Hook I.M., Maguire K., Manulis I.,
Margheim S.J., Mattila S., Maund J.R., Mazzali P.A., Mccrum M.,
Mckinnon R., Moreno-Raya M.E., Nicholl M., Nugent P., Pain R., Pignata G.,
Phillips M.M., Polshaw J., Pumo M.L., Rabinowitz D., Reilly E.,
Romero-Canizales C., Scalzo R., Schmidt B., Schulze S., Sim S.,
Sollerman J., Taddia F., Tartaglia L., Terreran G., Tomasella L.,
Turatto M., Walker E., Walton N.A., Wyrzykowski L., Yuan F., Zampieri L.
<Astron. Astrophys., 579, A40-40 (2015)>
=2015A&A...579A..40S 2015A&A...579A..40S (SIMBAD/NED BibCode)
ADC_Keywords: Supernovae ; Photometry, UBVRI ; Photometry, infrared ;
Photometry, SDSS
Mission_Name: ESO
Keywords: instrumentation: spectrographs - methods: data analysis -
techniques: spectroscopic - surveys - supernovae: general
Abstract:
The Public European Southern Observatory Spectroscopic Survey of
Transient Objects (PESSTO) began as a public spectroscopic survey in
April 2012. PESSTO classifies transients from publicly available
sources and wide-field surveys, and selects science targets for
detailed spectroscopic and photometric follow-up. PESSTO runs for nine
months of the year, January - April and August - December inclusive,
and typically has allocations of 10 nights per month. We describe the
data reduction strategy and data products that are publicly available
through the ESO archive as the Spectroscopic Survey data release 1
(SSDR1). PESSTO uses the New Technology Telescope with the instruments
EFOSC2 and SOFI to provide optical and NIR spectroscopy and imaging.
We target supernovae and optical transients brighter than 20.5m for
classification. Science targets are selected for follow-up based on
the PESSTO science goal of extending knowledge of the extremes of the
supernova population. We use standard EFOSC2 set-ups providing spectra
with resolutions of 13-18Å between 3345-9995Å. A subset of the
brighter science targets are selected for SOFI spectroscopy with the
blue and red grisms (0.935-2.53µm and resolutions 23-33Å) and
imaging with broadband JHKs filters. This first data release (SSDR1)
contains flux calibrated spectra from the first year (April
2012-2013). A total of 221 confirmed supernovae were classified, and
we released calibrated optical spectra and classifications publicly
within 24h of the data being taken (via WISeREP). The data in SSDR1
replace those released spectra. They have more reliable and
quantifiable flux calibrations, correction for telluric absorption,
and are made available in standard ESO Phase 3 formats. We estimate
the absolute accuracy of the flux calibrations for EFOSC2 across the
whole survey in SSDR1 to be typically ∼15%, although a number of
spectra will have less reliable absolute flux calibration because of
weather and slit losses. Acquisition images for each spectrum are
available which, in principle, can allow the user to refine the
absolute flux calibration. The standard NIR reduction process does not
produce high accuracy absolute spectrophotometry but synthetic
photometry with accompanying JHKs imaging can improve this. Whenever
possible, reduced SOFI images are provided to allow this. Future data
releases will focus on improving the automated flux calibration of the
data products. The rapid turnaround between discovery and
classification and access to reliable pipeline processed data products
has allowed early science papers in the first few months of the
survey.
Description:
PESSTO (Public ESO Spectroscopic Survey of Transient Objects) began in
April 2012 on the New Technology Telescope using the instruments
EFOSC2 and SOFI. We typically target supernovae and optical transients
brighter than 20.5m for classification and select science targets for
detailed follow-up. We use standard EFOSC2 setups providing
spectra with resolutions of 13-17Å between 3650-9995Å.
A subset of the brighter science targets are selected for SOFI
spectroscopy with the blue and red Grisms (resolutions 23-33Å) and
imaging with broadband JHKs filters. This catalogue data release
provides photometric lightcurve coverage for the PESSTO targets for
which follow-up lightcurves have been completed. Photometric
lightcurves for a total of 18 objects are provided in this initial
release.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
pessto.dat 344 32 PESSTO Public ESO Spectroscopic Survey of
Transient Objects
mphot.dat 264 2488 PESSTO multi-epoch photometry
--------------------------------------------------------------------------------
Byte-by-byte Description of file: pessto.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 23 A23 --- Source Transient discovery ID
(TRANSIENTDISCOVERYID)
25- 34 F10.6 deg RAdeg Transient right ascension (J2000)
(TRANSIENT_RAJ2000)
36- 45 F10.6 deg DEdeg Transient declination (J2000)
(TRANSIENT_DECJ2000)
47- 53 A7 --- Class Transient classification
(TRANSIENT_CLASSIFICATION) (1)
55 I1 --- f_Class [0/1] Transient classification peculiar flag
(TRANSIENTCLASSIFICATIONPECULIAR_FLAG) (2)
57- 65 A9 --- r_Class Transient classification source
(TRANSIENTCLASSIFICATIONSOURCE)
67- 71 I5 --- ClassA ? Transient classification ATel number
reporting the classification
(TRANSIENTCLASSIFICATIONATEL)
73- 77 I5 d MJD MJD at the point of classification
(TRANSIENTCLASSIFICATIONMJD)
79- 86 F8.6 --- z Transient redshift measured from the
classification spectra
(TRANSIENTCLASSIFICATIONREDSHIFT)
88- 95 A8 d Phase Phase of the transient at classification with
respect to maximum light
(TRANSIENTCLASSIFICATIONPHASE)
97- 99 I3 d b_Phase ? Estimated lower limit of the phase of the
transient
(TRANSIENTCLASSIFICATIONPHASELOWERLIMIT)
101-103 I3 d B_Phase ? Estimated upper limit of the phase of the
transient
(TRANSIENTCLASSIFICATIONPHASEUPPERLIMIT)
105-109 I5 --- DMJD MJD at the point of discovery, reported from
the originating discovery survey
(TRANSIENTDISCOVERYMJD)
111-117 F7.4 --- Dmag Magnitude of the transient at the point of
discovery, reported from the originating
discovery survey (TRANSIENTDISCOVERYMAG)
119-128 A10 --- DFilt Transient discovery magnitude filter
(TRANSIENTDISCOVERYMAG_FILTER)
130 I1 --- FT [0/1] Target followup (FOLLOWUP_TARGET) (3)
132-133 I2 --- HStage [1/5]?=- Stage of the transient-galaxy
cross-match method at which the host galaxy
was matched (HOSTSEARCHSTAGE)
135-164 A30 --- Host Host galaxy name (HOST_ID)
166-175 F10.6 deg HRAdeg ? Host galaxy right ascension (J2000)
(HOST_RAJ2000)
177-186 F10.6 deg HDEdeg ? Host galaxy declination (J2000)
(HOST_DECJ2000)
188-197 F10.7 deg OffN ? N-S transient-host separation (Positive
means the transient is North of the host)
(HOSTOFFSETN)
199-208 F10.7 deg OffE ? E-W transient-host separation (Positive
means the transient is East of the host)
(HOSTOFFSETE)
210-213 A4 --- r_Hzsp Source for Hzsp (HOSTREDSHIFTSPEC_SOURCE)
215-222 F8.6 --- Hzsp ? Host galaxy spectroscopic redshift
(HOSTREDSHIFTSPEC)
224-227 A4 --- r_Hzph Source for Hzph (HOSTREDSHIFTPHOT_SOURCE)
229-236 F8.6 --- Hzph ? Host galaxy photometric redshift
(HOSTREDSHIFTPHOT)
238-245 F8.6 --- e_Hzph ? rms uncertainty on Hzph
(HOSTREDSHIFTPHOT_ERR)
247-254 A8 --- Name Transient IAU id, SNYYYYaa (TRANSIENTIAUID)
256-320 A65 --- OName Transient alternative ids
(TRANSIENTALTERNATIVEIDS)
322-344 A23 --- PName Name used in mphot.dat file
--------------------------------------------------------------------------------
Note (1): The classification of the transient. These are generally from the
PESSTO ATel announcements, with some updates based on PESSTO data coverage.
For this catalogue PESSTO has adopted standard classification labels,
discussed in the release description.
Note (2): flag as follows:
1 = transient classified as peculiar (for its particular spectral
classification)
Note (3): Target followup flag as follows:
1 = transient became a PESSTO target for time series follow-up
--------------------------------------------------------------------------------
Byte-by-byte Description of file: mphot.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 I7 --- Phot-ID Unique identification for the single epoch of
photometry within the lightcurve catalogue
(PHOT_ID)
9- 31 A23 --- Source Unique identification of the transient found
within PESSTOTRANCAT (the TRANSIENT_ID
keyword value), the catalogue of transients
classified and followed by PESSTO (SOURCE_ID)
33- 44 F12.6 d MJD Mean modified Julin date of epoch of
photometry (MJD)
46- 50 F5.2 mag Umag ? Landolt U magnitude in Vega system
(UVEGAMAG)
52- 55 F4.2 mag e_Umag ? rms uncertainty on Umag (UVEGAMAGERR)
57- 61 F5.2 mag Bmag ? Landolt B magnitude in Vega system
(BVEGAMAG)
63- 66 F4.2 mag e_Bmag ? rms uncertainty on Bmag (BVEGAMAGERR)
68- 72 F5.2 mag Vmag ? Landolt V magnitude in Vega system
(VVEGAMAG)
74- 77 F4.2 mag e_Vmag ? rms uncertainty on Vmag (VVEGAMAGERR)
79- 83 F5.2 mag Rmag ? Landolt R magnitude in Vega system
(RVEGAMAG)
85- 88 F4.2 mag e_Rmag ? rms uncertainty on Rmag (RVEGAMAGERR)
90- 94 F5.2 mag Imag ? Landolt I magnitude in Vega system
(IVEGAMAG)
96- 99 F4.2 mag e_Imag ? rms uncertainty on Imag (IVEGAMAGERR)
101-105 F5.2 mag umag ? SDSS u magnitude in AB system (UABMAG)
107-110 F4.2 mag e_umag ? rms uncertainty on umag (UABMAGERR)
112-116 F5.2 mag gmag ? SDSS g magnitude in AB system (GABMAG)
118-121 F4.2 mag e_gmag ? rms uncertainty on gmag (GABMAGERR)
123-127 F5.2 mag rmag ? SDSS r magnitude in AB system (RABMAG)
129-132 F4.2 mag e_rmag ? rms uncertainty on rmag (RABMAGERR)
134-138 F5.2 mag imag ? SDSS i magnitude in AB system (IABMAG)
140-143 F4.2 mag e_imag ? rms uncertainty on imag (IABMAGERR)
145-149 F5.2 mag zmag ? SDSS z magnitude in AB system (ZABMAG)
151-154 F4.2 mag e_zmag ? rms uncertainty on zmag (ZABMAGERR)
156-160 F5.2 mag Jmag ? 2MASS J magnitude in Vega system
(JVEGAMAG)
162-165 F4.2 mag e_Jmag ? rms uncertainty on Jmag (JVEGAMAGERR)
167-171 F5.2 mag Hmag ? 2MASS H magnitude in Vega system
(HVEGAMAG)
173-176 F4.2 mag e_Hmag ? rms uncertainty on Hmag (HVEGAMAGERR)
178-182 F5.2 mag Ksmag ? 2MASS Ks magnitude in Vega system
(KSVEGAMAG)
184-187 F4.2 mag e_Ksmag ? rms uncertainty on Ksmag (KSVEGAMAGERR)
189-193 F5.2 mag LSQGRmag ? Natural LSQgr AB magnitude based system of
the filter (LSQGRABMAG)
195-198 F4.2 mag e_LSQGRmag ? rms uncertainty on LSQGRmag
(LSQGRABMAGERR)
200-204 F5.2 mag UVW2mag ? Swift UVW2 magnitude (UVW2SWIFTMAG)
206-209 F4.2 mag e_UVW2mag ? rms uncertainty on UVW2mag
(UVW2SWIFTMAGERR)
211-215 F5.2 mag UVM2mag ? Swift UVM2 magnitude (UVM2SWIFTMAG)
217-220 F4.2 mag e_UVM2mag ? rms uncertainty on UVM2mag
(UVM2SWIFTMAGERR)
222-226 F5.2 mag UVW1mag ? Swift UVW1 magnitude (UVW1SWIFTMAG)
228-231 F4.2 mag e_UVW1mag ? rms uncertainty on UVW1mag
(UVW1SWIFTMAGERR)
233-237 F5.2 mag e_USmag ? Swift U magnitude (USWIFTMAG)
239-242 F4.2 mag USmag ? rms uncertainty on USmag (USWIFTMAGERR)
244-248 F5.2 mag BSmag ? Swift B magnitude (BSWIFTMAG)
250-253 F4.2 mag e_BSmag ? rms uncertainty on BSmag (BSWIFTMAGERR)
255-259 F5.2 mag VSmag ? Swift V magnitude (VSWIFTMAG)
261-264 F4.2 mag e_VSmag ? rms uncertainty on VSmag (VSWIFTMAGERR)
--------------------------------------------------------------------------------
History:
Copied at ESO
(End) Patricia Vannier [CDS] 26-Sep-2017