Difference: TransientWGSedM (11 vs. 12)

Revision 122017-12-31 - ShriKulkarni

Line: 1 to 1

META TOPICPARENT	name="TransientWorkingGroup"

-- FrancescoTaddia - 15 Nov 2017

Line: 21 to 21

Lead: S. Kulkarni

Changed:

<
<

[Abstract]. We propose a flux limited transient survey based on the MSIP all sky survey. The standard in this field is set by ASAS-SN (T. Holoien, PhD thesis; OSU; several papers by T. Holoien) which is, contrary to the claims, complete to less than 17 mag. The experimental goal of the proposed ZTF project is to classify transients (which are mostly SN) to a peak flux, m_p of about 18 mag. In practice, this means classifying transients which are a few tenths mag fainter. Flux limited surveys serve many purposes such as rates. We have a specific novel goal: use SN of type Ia to evaluate the red-shift completeness factor (RCF) of catalog(s) of nearby (<200 Mpc). In anticipation of this project we undertook analysis of the ASAS-SN flux limited samples for 2014 and 2015 (Kulkarni, Perley & Miller 2017: http://adsabs.harvard.edu/abs/2017arXiv171004223K

>
>

[Extended Abstract]. We propose a flux limited transient survey based on the MSIP all sky survey. The standard in this field is set by ASAS-SN (T. Holoien, PhD thesis; OSU; several papers by T. Holoien) which is, contrary to the claims, complete to less than 17 mag. The experimental goal of the proposed ZTF project is to classify transients (which are mostly SN) to a peak flux, m_p of about 18 mag. In practice, this means classifying transients which are a few tenths mag fainter. Flux limited surveys serve many purposes such as rates. We have a specific novel goal: use SN of type Ia to evaluate the red-shift completeness factor (RCF) of catalog(s) of nearby (<200 Mpc). In anticipation of this project we undertook analysis of the ASAS-SN flux limited samples for 2014 and 2015 (Kulkarni, Perley & Miller 2017: http://adsabs.harvard.edu/abs/2017arXiv171004223K

). The "missing fraction" is 30% (to within binomial errors). We present a histogram of "missing galaxies" ordered by mass (K-band) and star-formation rate (UV/NUV). Surprisingly a number of L_* galaxies are "missing". Other returns from this survey can be found in this paper also. We aim to seek matching contribution of SEDM time from the Caltech TAC. This is a large project with significant combined SEDM time (in the vicinity of 30%). The goal is >500 SNe (to ideally 1000) over a 12 month period. The large sample size will improve the precision of RCF. Next, it is our intention to rapidly release the classifications to the community (via ATEL). The project is envisaged to include members from partnership and also astronomers not within the partnership (members of the Caltech proposal).

Changed:

<
<

We aim to seek matching contribution of SEDM time from the Caltech TAC. This is a large project with significant combined SEDM time (in the vicinity of 40%). The goal is >700 SNe over a 12 month period. The large sample size will improve the precision of RCF. Next, it is our intention to rapidly release the classifications to the community (via ATEL). The project is envisaged to include members from partnership and also astronomers not within the partnership (members of the Caltech proposal). We are developing a detailed management & publication plan. We hope to post a full 2-page proposal in about a week's time.

>
>

Full 2-page write up can be found at https://www.dropbox.com/s/nhd3qxnhdxwqjyd/WP_SEDM.pdf?dl=0

4) Catching the early light of ZTF supernovae

View topic | History: r12 < r11 < r10 < r9 | More topic actions...