K. Penev

HATS-1b: The First Transiting Planet Discovered by the HATSouth Survey

K. Penev, G. Ã. Bakos, D. Bayliss +25

We report the discovery of HATS-1b, a transiting extrasolar planet orbiting the moderately bright V=12.05 G dwarf star GSC 6652-00186, and the first planet discovered by HATSouth,…

astro-ph.IM2017

Image Subtraction Reduction of Open Clusters M35 & NGC 2158 In The K2 Campaign-0 Super-Stamp

M. Soares-Furtado, J. D. Hartman, G. A. Bakos +3

Observations were made of the open clusters M35 and NGC 2158 during the initial K2 campaign (C0). Reducing these data to high-precision photometric time-series is challenging due t…

HATS-13b and HATS-14b: two transiting hot Jupiters from the HATSouth survey

L. Mancini, J. D. Hartman, K. Penev +23

We report the discovery of HATS-13b and HATS-14b, two hot-Jupiter transiting planets discovered by the HATSouth survey. The host stars are quite similar to each other (HATS-13: V =…

HAT-P-49b: A 1.7 M_J Planet Transiting a Bright 1.5 M_S F-Star

A. Bieryla, J. D. Hartman, G. A. Bakos +18

We report the discovery of the transiting extrasolar planet HAT-P-49b. The planet transits the bright (V = 10.3) slightly evolved F-star HD 340099 with a mass of 1.54M_S and a radi…

HATSouth: a global network of fully automated identical wide-field telescopes

G. Ã. Bakos, Z. Csubry, K. Penev +21

HATSouth is the world's first network of automated and homogeneous telescopes that is capable of year-round 24-hour monitoring of positions over an entire hemisphere of the sky. Th…

HAT-P-47b AND HAT-P-48b: Two Low Density Sub-Saturn-Mass Transiting Planets on the Edge of the Period--Mass Desert

G. Ã. Bakos, J. D. Hartman, G. Torres +21

We report the discovery of two new transiting extrasolar planets orbiting moderately bright (V = 10.7 and 12.2 mag) F stars (masses of 1.39 Msun and 1.10 Msun, respectively). The p…

astro-ph.EP2020

HAT-P-58b -- HAT-P-64b: Seven Planets Transiting Bright Stars

G. Ã. Bakos, J. D. Hartman, W. Bhatti +31

We report the discovery and characterization of 7 transiting exoplanets from the HATNet survey. The planets, which are hot Jupiters and Saturns transiting bright sun-like stars, in…

HATS-71b: A giant planet transiting an M3 dwarf star in TESS Sector 1

G. Ã. Bakos, D. Bayliss, J. Bento +41

We report the discovery of HATS-71b, a transiting gas giant planet on a P = 3.7955 day orbit around a G = 15.35 mag M3 dwarf star. HATS-71 is the coolest M dwarf star known to host…

HATS-8b: A Low-Density Transiting Super-Neptune

D. Bayliss, J. D. Hartman, G. Ã. Bakos +23

HATS-8b is a low density transiting super-Neptune discovered as part of the HATSouth project. The planet orbits its solar-like G dwarf host (V=14.03 $\pm$ 0.10 and T $_{e f f}$ =5679…

HATS-4b: A Dense Hot-Jupiter Transiting a Super Metal-Rich G Star

A. JordÃ¡n, R. Brahm, G. Ã. Bakos +31

We report the discovery by the HATSouth survey of HATS-4b, an extrasolar planet transiting a V=13.46 mag G star. HATS-4b has a period of P = 2.5167 d, mass of Mp = 1.32 Mj, radius…

HATS-15 b and HATS-16 b: Two massive planets transiting old G dwarf stars

S. Ciceri, L. Mancini, T. Henning +28

We report the discovery of HATS-15 b and HATS-16 b, two massive transiting extrasolar planets orbiting evolved ( $\sim 10$ Gyr) main-sequence stars. The planet HATS-15 b, which is h…

High Precision Photometry for K2 Campaign 1

Chelsea X. Huang, K. Penev, J. D. Hartman +4

The two reaction wheel K2 mission promises and has delivered new discoveries in the stellar and exoplanet fields. However, due to the loss of accurate pointing, it also brings new…

HAT-P-54b: A hot jupiter transiting a 0.64 Msun star in field 0 of the K2 mission

G. Ã. Bakos, J. D. Hartman, W. Bhatti +22

We report the discovery of HAT-P-54b, a planet transiting a late K dwarf star in field 0 of the NASA K2 mission. We combine ground-based photometric light curves with radial veloci…

HAT-P-42b and HAT-P-43b. Two Inflated Transiting Hot Jupiters from the HATNet Survey

I. Boisse, J. Hartman, G. Bakos +20

First identified from the HATNet wide-field photometric survey, these candidate transiting planets were then followed-up with a variety of photometric observations. Determining the…

HATS-36b and 24 other transiting/eclipsing systems from the HATSouth - K2 Campaign 7 program

D. Bayliss, J. D. Hartman, G. Zhou +20

We report on the result of a campaign to monitor 25 HATSouth candidates using the K2 space telescope during Campaign 7 of the K2 mission. We discover HATS-36b (EPIC 215969174b), a…

HAT-P-39b--HAT-P-41b: Three Highly Inflated Transiting Hot Jupiters

J. D. Hartman, G. Ã. Bakos, B. BÃ©ky +26

We report the discovery of three new transiting extrasolar planets orbiting moderately bright (V=11.1 to 12.4) F stars. The planets have periods of P = 2.6940 d to 4.4572 d, masses…

HATS-39b, HATS-40b, HATS-41b, and HATS-42b: Three Inflated Hot Jupiters and a Super-Jupiter Transiting F Stars

J. Bento, J. D. Hartman, G. A. Bakos +22

We report the discovery of four transiting hot Jupiters from the HATSouth survey: HATS-39b, HATS-40b, HATS41b and HATS-42b. These discoveries add to the growing number of transitin…

HATS-43b, HATS-44b, HATS-45b, and HATS-46b: Four Short Period Transiting Giant Planets in the Neptune-Jupiter Mass Range

R. Brahm, J. D. Hartman, A. Jordan +27

We report the discovery of four short period extrasolar planets transiting moderately bright stars from photometric measurements of the HATSouth network coupled to additional spect…

astro-ph.SR2013

The Mass-Radius Relationship for Very Low Mass Stars: Four New Discoveries from the HATSouth Survey

G. Zhou, D. Bayliss, J. D. Hartman +15

We report the discovery of four transiting F-M binary systems with companions between 0.1-0.2 Msun in mass by the HATSouth survey. These systems have been characterised via a globa…

HATS-50b through HATS-53b: four transiting hot Jupiters orbiting G-type stars discovered by the HATSouth survey

Th. Henning, L. Mancini, P. Sarkis +26

We report the discovery of four close-in transiting exoplanets, HATS-50 through HATS-53, discovered using the HATSouth three-continent network of homogeneous and automated telescop…

astro-ph.SR2010

The sub- and quasi- centurial cycles in solar and geomagnetical data series /(s2)

B. Komitov, S. Sello, P. Duchlev +3

The subject of this paper is the existence and stability of solar cycles with duration in the range of 20-250 years. Five type of data series are used: 1) The Zurich series (1749-2…

HATS-17b: A Transiting Compact Warm Jupiter in a 16.3 Days Circular Orbit

R. Brahm, A. JordÃ¡n, G. Ã. Bakos +19

We report the discovery of HATS-17b, the first transiting warm Jupiter of the HATSouth network. HATS-17b transits its bright (V=12.4) G-type (M $_{⋆}$ =1.131 $\pm$ 0.030 M$_{\odo…

astro-ph.EP2013

HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems

J. D. Hartman, G. Ã. Bakos, G. Torres +26

We report the discovery by the HATNet survey of three new transiting extrasolar planets orbiting moderately bright (V=13.2, 12.8 and 11.9) stars. The planets have orbital periods o…

HAT-P-56b: An inflated massive Hot Jupiter transiting a bright F star followed up with K2 Campaign 0 observations

C. X. Huang, J. D. Hartman, G. Ã. Bakos +16

We report the discovery of HAT-P-56b by the HATNet survey, an inflated hot Jupiter transiting a bright F type star in Field 0 of NASA's K2 mission. We combine ground-based discover…

astro-ph.EP2020

HATS-47b, HATS-48Ab, HATS-49b and HATS-72b: Four Warm Giant Planets Transiting K Dwarfs

J. D. Hartman, AndrÃ©s JordÃ¡n, D. Bayliss +43

We report the discovery of four transiting giant planets around K dwarfs. The planets HATS-47b, HATS-48Ab, HATS-49b, and HATS-72b have masses of $0.36 9_{- 0.021}^{+ 0.031}$ $M_{J}$ ,…

HATS-60b - HATS-69b: Ten Transiting Planets From HATSouth

J. D. Hartman, G. A. Bakos, D. Bayliss +27

We report the discovery of ten transiting extrasolar planets by the HATSouth survey. The planets range in mass from the Super-Neptune HATS-62b, with $M_{p} < 0.179 M_{J}$ , to the S…

astro-ph.SR2015

A 0.24+0.18 Msun double-lined eclipsing binary from the HATSouth survey

G. Zhou, D. Bayliss, J. D. Hartman +21

We report the discovery and characterisation of a new M-dwarf binary, with component masses and radii of M1 = 0.244 -0.003/+0.003 Msun, R1 = 0.261 -0.009/+0.006 Rsun, M2 = 0.179 -0…

astro-ph.EP2019

The highly inflated giant planet WASP-174b

L. Mancini, P. Sarkis, Th. Henning +18

The transiting exoplanetary system WASP-174 was reported to be composed by a main-sequence F star (V=11.8 mag) and a giant planet, WASP-174b (orbital period 4.23 days). However onl…

HAT-P-34b -- HAT-P-37b: Four Transiting Planets More Massive Than Jupiter Orbiting Moderately Bright Stars

G. Ã. Bakos, J. D. Hartman, G. Torres +24

We report the discovery of four transiting extrasolar planets (HAT-P-34b - HAT-P-37b) with masses ranging from 1.05 to 3.33 MJ and periods from 1.33 to 5.45 days. These planets orb…

astro-ph.EP2013

HATS-3b: An inflated hot Jupiter transiting an F-type star

D. Bayliss, G. Zhou, K. Penev +26

We report the discovery by the HATSouth survey of HATS-3b, a transiting extrasolar planet orbiting a V=12.4 F-dwarf star. HATS-3b has a period of P = 3.5479d, mass of Mp = 1.07MJ,…

HAT-P-55b: A Hot Jupiter Transiting a Sun-like Star

D. Juncher, L. A. Buchhave, J. D. Hartman +16

We report the discovery of a new transiting extrasolar planet, HAT-P-55b. The planet orbits a V = 13.207 +/- 0.039 sun-like star with a mass of 1.013 +/- 0.037 solar masses, a radi…

HATS-5b: A Transiting hot-Saturn from the HATSouth Survey

G. Zhou, D. Bayliss, K. Penev +26

We report the discovery of HATS-5b, a transiting hot-Saturn orbiting a G type star, by the HAT-South survey. HATS-5b has a mass of Mp=0.24 Mj, radius of Rp=0.91 Rj, and transits it…

HATS-31b Through HATS-35b: Five Transiting Hot Jupiters Discovered by the HATSouth Survey

M. de Val-Borro, G. Ã. Bakos, R. Brahm +24

We report the discovery of five new transiting hot Jupiter planets discovered by the HATSouth survey: HATS-31b through HATS-35b. These planets orbit moderately bright stars with V…

HAT-P-38b: A Saturn-Mass Planet Transiting a Late G Star

B. Sato, J. D. Hartman, G. Ã. Bakos +20

We report the discovery of HAT-P-38b, a Saturn-mass exoplanet transiting the V=12.56 dwarf star GSC 2314-00559 on a P = 4.6404 d circular orbit. The host star is a 0.89Msun late G-…

HATS-70b: A 13 Mjup brown dwarf transiting an A star

G. Zhou, G. Ã. Bakos, D. Bayliss +23

We report the discovery of HATS-70b, a transiting brown dwarf at the deuterium burning limit. HATS-70b has a mass of Mp=12.9 +1.8/-1.6 Mjup and a radius of Rp=1.384 +0.079/-0.074 R…

HATS-19b, HATS-20b, HATS-21b: Three Transiting Hot-Saturns Discovered by the HATSouth Survey

W. Bhatti, G. Ã. Bakos, J. D. Hartman +24

We report the discovery by the HATSouth exoplanet survey of three hot-Saturn transiting exoplanets: HATS-19b, HATS-20b, and HATS-21b. The planet host HATS-19 is a slightly evolved…

astro-ph.EP2021

HATS-74Ab, HATS-75b, HATS-76b and HATS-77b: Four Transiting Giant Planets around K and M Dwarfs

A. JordÃ¡n, J. D. Hartman, D. Bayliss +32

The relative rarity of giant planets around low mass stars compared with solar-type stars is a key prediction from core accretion planet formation theory. In this paper we report o…

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

J. D. Hartman, G. Ã. Bakos, L. A. Buchhave +24

We present the discovery of HAT-P-57b, a P = 2.4653 day transiting planet around a V = 10.465 +- 0.029 mag, Teff = 7500 +- 250 K main sequence A8V star with a projected rotation ve…

HATS-7b: A Hot Super Neptune Transiting a Quiet K Dwarf Star

G. Ã. Bakos, K. Penev, D. Bayliss +25

IW ../submit_V2/abstract.txt ( Row 1 Col 1 6:48 Ctrl-K H for help We report the discovery by the HATSouth network of HATS-7b, a transiting Super-Neptune with a mass of 0.120+/-0.01…

HATS-6b: A Warm Saturn Transiting an Early M Dwarf Star, and a Set of Empirical Relations for Characterizing K and M Dwarf Planet Hosts

J. D. Hartman, D. Bayliss, R. Brahm +25

We report the discovery by the HATSouth survey of HATS-6b, an extrasolar planet transiting a V=15.2 mag, i=13.7 mag M1V star with a mass of 0.57 Msun and a radius of 0.57 Rsun. HAT…

HAT-P-67b: An Extremely Low Density Saturn Transiting an F-Subgiant Confirmed via Doppler Tomography

G. Zhou, G. Ã. Bakos, J. D. Hartman +29

We report the discovery of HAT-P-67b, a hot-Saturn transiting a rapidly rotating F-subgiant. HAT-P-67b has a radius of Rp = 2.085 -0.071/+0.096 RJ,, orbiting a M* = 1.642 -0.072/+0…

HATS-59b,c: A Transiting Hot Jupiter and a Cold Massive Giant Planet Around a Sun-Like Star

P. Sarkis, Th. Henning, J. D. Hartman +27

We report the first discovery of a multi-planetary system by the HATSouth network, HATS-59b,c, a planetary system with an inner transiting hot Jupiter and an outer cold massive gia…

astro-ph.EP2013

HATS-2b: A transiting extrasolar planet orbiting a K-type star showing starspot activity

M. Mohler-Fischer, L. Mancini, J. D. Hartman +24

We report the discovery of HATS-2b, the second transiting extrasolar planet detected by the HATSouth survey. HATS-2b is moving on a circular orbit around a V=13.6 mag, K-type dwarf…

HATS-9b and HATS-10b: Two Compact Hot Jupiters in Field 7 of the K2 Mission

R. Brahm, A. JordÃ¡n, J. D. Hartman +21

We report the discovery of two transiting extrasolar planets by the HATSouth survey. HATS-9b orbits an old (10.8 $\pm$ 1.5 Gyr) V=13.3 G dwarf star, with a period P = 1.9153 d. The…

astro-ph.EP2019

Two new HATNet hot Jupiters around A stars, and the first glimpse at the occurrence rate of hot Jupiters from TESS

G. Zhou, C. X. Huang, G. Ã. Bakos +68

Wide field surveys for transiting planets are well suited to searching diverse stellar populations, enabling a better understanding of the link between the properties of planets an…

astro-ph.IM2015

Precision multi-band photometry with a DSLR camera

M. Zhang, G. Ã. Bakos, K. Penev +4

Ground-based exoplanet surveys such as SuperWASP, HATNet and KELT have discovered close to two hundred transiting extrasolar planets in the past several years. The strategy of thes…

astro-ph.EP2020

HATS-37Ab and HATS-38b: Two Transiting Hot Neptunes in the Desert

A. JordÃ¡n, G. Ã. Bakos, D. Bayliss +24

We report the discovery of two transiting Neptunes by the HATSouth survey. The planet HATS-37Ab has a mass of 0.099 +- 0.042 M_J (31.5 +- 13.4 M_earth) and a radius of 0.606 +- 0.0…

HATS-11b and HATS-12b: Two transiting Hot Jupiters orbiting sub-solar metallicity stars selected for the K2 Campaign 7

M. Rabus, A. JordÃ¡n, J. D. Hartman +21

We report the discovery of two transiting extrasolar planets from the HATSouth survey. HATS-11, a V=14.1 G0-star shows a periodic 12.9 mmag dip in its light curve every 3.6192 days…

astro-ph.SR2018

HAT-TR-318-007: a double-lined M-dwarf binary with total secondary eclipses discovered by HATNet and observed by K2

J. D. Hartman, S. N. Quinn, G. Ã. Bakos +11

We report the discovery by the HATNet survey of HAT-TR-318-007, a $P = 3.34395390 \pm 0.00000020$ d period detached double-lined M-dwarf binary with total secondary eclipses. We comb…