Dippers from the TESS Full-Frame Images I: The Results of the first 1
  year data and Discovery of A Runaway dipper
  We present a comprehensive catalog of the dippers---young stellar objects
that exhibit episodic dimming---derived from the one year's worth of data of
Transiting Exoplanet Survey Satellite ($ TESS$) full-frame images. In the
survey, we found 35 dippers using the convolutional neural network, most of
them newly discovered. Although these dippers are widely distributed over the
first half-hemisphere that $TESS$ surveyed, we identified the majority's
membership with the nearest association Scorpius--Centaurus, Velorum OB2, and
nearby Orion molecular cloud complex. However, several dippers are likely to be
located in the field. We also found three old dippers whose age exceeds ten
million year, which is considered as the disk dissipation time. The color-color
diagram indicates that these old dippers are likely to have an extreme debris
disk. In particular, we found a runaway old dipper having a large
three-dimensional velocity of $72 \mathrm{km\ s}^{-1}$. The dippers in the
field, which were probably escaping from their birth molecular clouds or were
born outside the current area of star forming regions, are more common than
previously considered.
