P00002 THE OBJECTIVE OF THIS PROPOSAL IS TO INVESTIGATE SEVERAL ASPECTS OF THE INSIDE-OUT PLANET FORMATION MODEL, RECENTLY PROPOSED BY CHATTERJEE & TAN (2014). THIS MODEL INVOLVES SEQUENTIAL FORMATION OF PLANETS FROM PEBBLE (I.E., ~CENTIMETER TO ~METER-SIZED PARTICLE)- RICH RINGS IN THE INNER REGIONS OF PROTOPLANETARY DISKS. PEBBLES, FORMED FROM DUST COAGULATION, MIGRATE TO THE INNER DISK BECAUSE OF GAS DRAG AND COLLECT AT A LOCAL PRESSURE MAXIMUM ASSOCIATED WITH THE INNER BOUNDARY OF THE DEAD ZONE WITH A MAGNETO-ROTATIONAL INSTABILITY (MRI)-ACTIVE REGION. ONCE THE FIRST PLANET FORMS FROM THE PEBBLE RING, IT MAY EITHER GROW TO OPEN A GAP LEADING TO DEAD ZONE RETREAT OR MIGRATE INWARDS INTO THE MRI-ACTIVE REGION. IN EITHER CASE, A NEW PEBBLE RING STARTS TO FORM EXTERIOR TO THE PLANET, AND THE PROCESS REPEATS. THIS MODEL MAY HELP EXPLAIN THE SYSTEMS OF TIGHTLY-PACKED INNER PLANETS (STIPS) RECENTLY DISCOVERED BY KEPLER Other Administrative Action $0 3/16/21 Not listed THE OBJECTIVE OF THIS PROPOSAL IS TO INVESTIGATE SEVERAL ASPECTS OF THE INSIDE-OUT PLANET FORMATION MODEL RECENTLY PROPOSED BY CHATTERJEE & TAN (2014). THIS MODEL INVOLVES SEQUENTIAL FORMATION OF PLANETS FROM PEBBLE (I.E. ~CENTIMETER TO ~METER-SIZED PARTICLE)- RICH RINGS IN THE INNER REGIONS OF PROTOPLANETARY DISKS. PEBBLES FORMED FROM DUST COAGULATION MIGRATE TO THE INNER DISK BECAUSE OF GAS DRAG AND COLLECT AT A LOCAL PRESSURE MAXIMUM ASSOCIATED WITH THE INNER BOUNDARY OF THE DEAD ZONE WITH A MAGNETO-ROTATIONAL INSTABILITY (MRI)-ACTIVE REGION. ONCE THE FIRST PLANET FORMS FROM THE PEBBLE RING IT MAY EITHER GROW TO OPEN A GAP LEADING TO DEAD ZONE RETREAT OR MIGRATE INWARDS INTO THE MRI-ACTIVE REGION. IN EITHER CASE A NEW PEBBLE RING STARTS TO FORM EXTERIOR TO THE PLANET AND THE PROCESS REPEATS. THIS MODEL MAY HELP EXPLAIN THE SYSTEMS OF TIGHTLY-PACKED INNER PLANETS (STIPS) RECENTLY DISCOVERED BY KEPLER $0 3/16/21 Not listed THE OBJECTIVE OF THIS PROPOSAL IS TO INVESTIGATE SEVERAL ASPECTS OF THE INSIDE-OUT PLANET FORMATION MODEL RECENTLY PROPOSED BY CHATTERJEE & TAN (2014). THIS MODEL INVOLVES SEQUENTIAL FORMATION OF PLANETS FROM PEBBLE (I.E. ~CENTIMETER TO ~METER-SIZED PARTICLE)- RICH RINGS IN THE INNER REGIONS OF PROTOPLANETARY DISKS. PEBBLES FORMED FROM DUST COAGULATION MIGRATE TO THE INNER DISK BECAUSE OF GAS DRAG AND COLLECT AT A LOCAL PRESSURE MAXIMUM ASSOCIATED WITH THE INNER BOUNDARY OF THE DEAD ZONE WITH A MAGNETO-ROTATIONAL INSTABILITY (MRI)-ACTIVE REGION. ONCE THE FIRST PLANET FORMS FROM THE PEBBLE RING IT MAY EITHER GROW TO OPEN A GAP LEADING TO DEAD ZONE RETREAT OR MIGRATE INWARDS INTO THE MRI-ACTIVE REGION. IN EITHER CASE A NEW PEBBLE RING STARTS TO FORM EXTERIOR TO THE PLANET AND THE PROCESS REPEATS. THIS MODEL MAY HELP EXPLAIN THE SYSTEMS OF TIGHTLY-PACKED INNER PLANETS (STIPS) RECENTLY DISCOVERED BY KEPLER $0 3/23/20 P00001 THE OBJECTIVE OF THIS PROPOSAL IS TO INVESTIGATE SEVERAL ASPECTS OF THE INSIDE-OUT PLANET FORMATION MODEL, RECENTLY PROPOSED BY CHATTERJEE & TAN (2014). THIS MODEL INVOLVES SEQUENTIAL FORMATION OF PLANETS FROM PEBBLE (I.E., ~CENTIMETER TO ~METER-SIZED PARTICLE)- RICH RINGS IN THE INNER REGIONS OF PROTOPLANETARY DISKS. PEBBLES, FORMED FROM DUST COAGULATION, MIGRATE TO THE INNER DISK BECAUSE OF GAS DRAG AND COLLECT AT A LOCAL PRESSURE MAXIMUM ASSOCIATED WITH THE INNER BOUNDARY OF THE DEAD ZONE WITH A MAGNETO-ROTATIONAL INSTABILITY (MRI)-ACTIVE REGION. ONCE THE FIRST PLANET FORMS FROM THE PEBBLE RING, IT MAY EITHER GROW TO OPEN A GAP LEADING TO DEAD ZONE RETREAT OR MIGRATE INWARDS INTO THE MRI-ACTIVE REGION. IN EITHER CASE, A NEW PEBBLE RING STARTS TO FORM EXTERIOR TO THE PLANET, AND THE PROCESS REPEATS. THIS MODEL MAY HELP EXPLAIN THE SYSTEMS OF TIGHTLY-PACKED INNER PLANETS (STIPS) RECENTLY DISCOVERED BY KEPLER Other Administrative Action $0 3/23/20 Not listed THE OBJECTIVE OF THIS PROPOSAL IS TO INVESTIGATE SEVERAL ASPECTS OF THE INSIDE-OUT PLANET FORMATION MODEL, RECENTLY PROPOSED BY CHATTERJEE & TAN (2014). THIS MODEL INVOLVES SEQUENTIAL FORMATION OF PLANETS FROM PEBBLE (I.E., ~CENTIMETER TO ~METER-SIZED PARTICLE)- RICH RINGS IN THE INNER REGIONS OF PROTOPLANETARY DISKS. PEBBLES, FORMED FROM DUST COAGULATION, MIGRATE TO THE INNER DISK BECAUSE OF GAS DRAG AND COLLECT AT A LOCAL PRESSURE MAXIMUM ASSOCIATED WITH THE INNER BOUNDARY OF THE DEAD ZONE WITH A MAGNETO-ROTATIONAL INSTABILITY (MRI)-ACTIVE REGION. ONCE THE FIRST PLANET FORMS FROM THE PEBBLE RING, IT MAY EITHER GROW TO OPEN A GAP LEADING TO DEAD ZONE RETREAT OR MIGRATE INWARDS INTO THE MRI-ACTIVE REGION. IN EITHER CASE, A NEW PEBBLE RING STARTS TO FORM EXTERIOR TO THE PLANET, AND THE PROCESS REPEATS. THIS MODEL MAY HELP EXPLAIN THE SYSTEMS OF TIGHTLY-PACKED INNER PLANETS (STIPS) RECENTLY DISCOVERED BY KEPLER Not listed $214.3k 5/1/19