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Title: Revealing the progenitor of SN 2021zby through analysis of the
    TESS shock-cooling light curve 
Authors: Wang Q., Armstrong P., Zenati Y., Ridden-Harper R., Rest A., 
    Arcavi I., Kilpatrick C.D., Foley R.J., Tucker B.E., Lidman C., 
    Killestein T.L., Shahbandeh M., Anderson J.P., Angulo R., Ashall C., 
    Burke J., Chen T.-C., von Coelln S., Dalrymple K.A., Davis K.W., 
    Fulton M.D., Galbany L., Padilla Gonzalez E., Gao B., Gromadzki M., 
    Howell D.A., Ihanec N., Jencson J.E., Jones D.O., Lyman J.D., McCully C., 
    Muller-Bravo T.E., Newsome M., Nicholl M., O'Neill D., Pellegrino C., 
    Rest S., Smartt S.J., Smith K., Srivastav S., Terreran G., Tinyanont S., 
    Young D.R., Zenteno A. 
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Description of contents: This tar.gz archive contains the data behind
    Figure 2 of the accepted version of the manuscript listed above.
    These files include the optical and NIR spectral series of SN
    2021zby. The specific files included in this archive are:
    
    2021zby-KAST-2021-09-26.mrt                                        Optical spectrum taken with Shane/Kast at Phase 8.8d
    2021zby-KAST-2021-10-16.mrt                                        Optical spectrum taken with Shane/Kast at Phase 28.5d
    2021zby-SpeX-2021-09-25.mrt                                        NIR spectrum taken with IRTF/SpeX at Phase 7.89d
    2021zby_1125_NTT_sum.mrt                                           Optical spectrum taken with NTT/EFOSC2 at Phase 67.1d
    SN2021zby_2021-10-09_02-44-23_LT_SPRAT_TNS.mrt                     Optical spectrum taken with LT/SPRAT at Phase 21.2d
    SN2021zby_2021-10-14_06-21-20.033_ESO-NTT_EFOSC2-NTT_ePESSTOp.mrt  Optical spectrum taken with NTT/EFOSC2 at Phase 26.2d
    SN2021zby_2021-10-28_07-11-23.858_ESO-NTT_EFOSC2-NTT_ePESSTOp.mrt  Optical spectrum taken by NTT/EFOSC2 at Phase 39.9d
    T2m3ws-20211017.154844-0100.p12_SN_tqzTyxG.mrt                     Optical spectrum taken with SSO/WiFeS at Phase 29.5d
    WiFeS0919_binned.mrt                                               Optical spectrum taken with SSO/WiFeS at Phase 2.3d
    sn2021zby_20211024_redblu_145120.208.mrt                           Optical spectrum taken with Faulkes Telescope North/FLOYDS at Phase 36.3d
    sn2021zby_20211102_redblu_122930.029.mrt                           Optical spectrum taken by Faulkes Telescope North/FLOYDS at Phase 45d
    sn2021zby_20211109_redblu_111635.390.mrt                           Optical spectrum taken by Faulkes Telescope North/FLOYDS at Phase 51.7d
    sn2021zby_fullcal.mrt                                              Optical spectrum taken with INT/IDS at Phase 39.7d
    
    The files are flux-calibrated and include 2 or 3 columns with the
    wavelength (in Angstroms) in column 1, a flux in column 2, and in some
    case the flux uncertainty in column 3. 
    
System requirements: The files are formatted according to the machine
    readable format used by the AAS Journals and CDS/VizieR. Specific
    information on the structure of MRT files can be found at:
    
        AAS: https://journals.aas.org/mrt-overview/
        CDS: http://cds.u-strasbg.fr/doc/catstd.htx
    
    These files can be read in python using the astropy package:
    
        from astropy.table import Table
        data = Table.read("sn2021zby_fullcal.mrt", format="ascii.cds")
    
    or with the most recent version of TOPCAT (> Version 4.8)
    
Additional comments: ## Please replace this with additional comments
 or even text from the main paper useful for the AAS Journal reader. ##
    
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