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Title: Discovery and Early Evolution of ASASSN-19bt, the First TDE Detected 
       by TESS 
Authors: Holoien T.W., Vallely P.J., Auchettl K., Stanek K.Z., Kochanek C.S., 
    French K.D., Prieto J.L., Shappee B.J., Brown J.S., Fausnaugh M.M., 
    Dong S., Thompson T.A., Bose S., Neustadt J.M.M., Cacella P., 
    Brimacombe J., Kendurkar M.R., Beaton R.L., Boutsia K., Chomiuk L., 
    Connor T., Morrell N., Newman A.B., Rudie G.C., Shishkovksy L., Strader J.
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Description of contents: This tar.gz archive file contains the 12 optical
   spectra of ASASSN-19bt shown in Figure 5 of the above published article.
   The details of the observations are given in Table 3. The 12 files are as
   follows: 

    asassn19bt_imacs_190205_cal_mrt.txt:  optical spectrum of ASASSN-19bt from IMACS on 20190205
    asassn19bt_imacs_190212_newcal_mrt.txt:  optical spectrum of ASASSN-19bt from IMACS on 20190212
    asassn19bt_imacs_190213_newcal_mrt.txt:  optical spectrum of ASASSN-19bt from IMACS on 20190213
    asassn19bt_ldss_190130_newcal_mrt.txt:  optical spectrum of ASASSN-19bt from LDSS on 20190130
    asassn19bt_ldss_190329_newcal_mrt.txt:  optical spectrum of ASASSN-19bt from LDSS on 20190329
    asassn19bt_soar_190324_cal_mrt.txt:  optical spectrum of ASASSN-19bt from SOAR on 20190324
    asassn19bt_wfccd_190131_newcal_mrt.txt:  optical spectrum of ASASSN-19bt from WFCCD on 20190131
    asassn19bt_wfccd_190301_newcal_mrt.txt:  optical spectrum of ASASSN-19bt from WFCCD on 20190301
    asassn19bt_wfccd_190303_newcal_mrt.txt:  optical spectrum of ASASSN-19bt from WFCCD on 20190303
    asassn19bt_wfccd_190305_newcal_mrt.txt:  optical spectrum of ASASSN-19bt from WFCCD on 20190305
    asassn19bt_wfccd_190410_newcal_mrt.txt:  optical spectrum of ASASSN-19bt from WFCCD on 20190410
    asassn19bt_wfccd_190412_newcal_mrt.txt:  optical spectrum of ASASSN-19bt from WFCCD on 20190412

   
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("asassn19bt_imacs_190205_cal_mrt.txt", format="ascii.cds")

Additional comments: 

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